Reaction time
(3)
Readiness for school
(3)
Reading
(16)
Reading (Elementary)
(6)
Reading (Higher education)
(1)
Reading (Kindergarten)
(1)
Reading (Preschool)
(2)
Reading (Secondary)
(3)
Reading interests
(2)
Reading promotion
(5)
Reading readiness
(2)
Ready-reckoners
(1)
Reagan, Ronald
(9)
Real estate business
(4)
Real estate development
(3)
Real estate investment
(4)
Real property
(5)
Real-time data processing
(1)
Realism in art
(2)
Reality television programs.
(1)
Reasoning
(4)
Recessions
(5)
Recidivism.
(1)
Recipes
(28)
Reciprocity
(1)
Reconciliation
(1)
Reconnaissance aircraft.
(2)
Reconstruction (U.S. history, 1865-1877)
(4)
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(1)
Recreation areas
(3)
Recruiting and enlistment
(1)
Recurrent sequences (Mathematics).
(1)
Recycling (Waste, etc.)
(12)
Recycling industry
(3)
Red giants
(1)
Red kite.
(1)
Redon, Odilon, 1840-1916
(2)
Reduced gravity environments
(7)
Reducing diets
(2)
Redwood (Wood)
(1)
Reed, Henry, 1884-1968
(1)
Reef ecology
(3)
Reference librarians
(2)
Reference services (Libraries)
(3)
Reform Party (U.S.)
(1)
Reformation
(1)
Refrigeration and refrigerating machinery
(1)
Refugee property
(2)
Refugees
(24)
Refugees, Political
(8)
Refuse and refuse disposal
(6)
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Regional economics
(7)
Regional planning
(8)
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(4)
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(1)
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(2)
Relational databases.
(1)
Relativity (Physics)
(8)
Relief printing
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(34)
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(18)
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(2)
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(2)
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(4)
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(7)
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(1)
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(2)
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(1)
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(1)
Religious tolerance
(1)
Rembrandt Harmenszoon van Rijn, 1606-1669
(3)
Remedial teaching
(1)
Remote sensing
(20)
Remote-sensing images
(12)
Remote-sensing maps
(2)
Renaissance
(7)
Renaissance -- Italy -- Florence -- Sources
(1)
Renaissance, Art
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(4)
Renewable Energy Policy Project
(1)
Renewable energy sources
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(1)
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Reporters sans frontières (Association)
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Representative government and representation
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Reproductive health
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Reptiles
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Reptiles, Fossil
(6)
Republican National Committee (U.S.)
(1)
Republican Party (U.S. : 1854- )
(1)
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(2)
Rescues.
(1)
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(87)
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(3)
Research grants
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Research institutes
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(8)
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(1)
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Residents (Medicine)
(1)
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(1)
Resource programs (Education)
(1)
Resources for the Future
(2)
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Respiratory organs
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(1)
Rest periods
(1)
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Restitution and indemnification claims (1933- )
(1)
Restitution and indemnification claims (1933-)
(1)
Restoration ecology
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Retirees
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Retirement
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Retirement income
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Return of the Jedi (Motion picture)
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(1)
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Revision control (Computer science)
(1)
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(2)
Reynolds, Roger, 1934-
(2)
Rheology
(2)
Rhetoric
(4)
Rheumatism
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Rhinoceroses.
(1)
Rhode Island
(1)
Ribonucleic acid.
(2)
Ribosomes
(3)
Ricci, Matteo, -- 1552-1610
(1)
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(1)
Rich people
(5)
Rich, Adrienne, 1929-2012
(1)
Richard III, King of England, 1452-1485
(1)
Richmond, Virginia
(7)
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Right and left (Political science)
(2)
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Right to counsel
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Right-wing extremists
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(1)
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(1)
Riots
(1)
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(1)
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Risk managers
(1)
Risk-taking (Psychology) in adolescence
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Rivers
(31)
RNA.
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Roads
(14)
Roanoke (Va.)
(3)
Roanoke Island (N.C.).
(1)
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(1)
Robber flies.
(1)
Robert Gould Shaw Memorial (Boston, Mass.)
(1)
Robert M. LaFollette Institute of Public Affairs.
(1)
Robert Wood Johnson Foundation
(2)
Robert, Alain, 1950-
(1)
Robinson, Jackie, 1919-1972
(3)
Robinson, William
(1)
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(34)
Robots
(17)
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(1)
Rochester (N.Y.)
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(9)
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(4)
Rock-forming minerals.
(1)
Rockefeller family
(1)
Rockefeller, John D. (John Davison), 1839-1937
(1)
Rocketry.
(2)
Rockets (Aeronautics)
(3)
Rocks
(22)
Rocks, Crystalline
(1)
Rocks, Igneous
(7)
Rocks, Metamorphic.
(4)
Rocks, Sedimentary
(6)
Rockwell, Norman, 1894-1978
(3)
Rodin, Auguste, 1840-1917.
(1)
Rogers, Fred.
(1)
Rogers, John, 1829-1904
(1)
Roller coasters
(4)
Rollins College (Winter Park, Fla.)
(1)
Roman law
(1)
Roman numerals
(2)
Romanies
(1)
Romans
(7)
Romanticism
(6)
Rome
(16)
Rome (Italy)
(4)
Ronald Reagan Presidential Library and Museum
(2)
Ronne Ice Shelf (Antarctica)
(1)
Roofing
(1)
Roofs
(1)
Roosevelt, Eleanor, 1884-1962
(1)
Roosevelt, Eleanor, 1884-1962.
(1)
Roosevelt, Franklin D. (Franklin Delano), 1882-1945
(2)
Roosevelt, Theodore, 1858-1919
(7)
Rosenwald, Lessing J. (Lessing Julius), 1891-1979
(1)
Roses
(2)
Rosling, Hans
(1)
Ross Ice Shelf.
(1)
Rossetti, Christina Georgina, 1830-1894
(1)
Rotational motion (Rigid dynamics).
(1)
Route choice
(2)
Rowing
(1)
Royal Air Force Sealand (Wales)
(1)
Royal Botanic Gardens, Kew
(3)
Royal Tyrrell Museum of Palaeontology.
(1)
RSS feeds
(14)
Ruby (Computer program language)
(1)
Ruddy Turnstone
(1)
Rugby football
(2)
Rugs
(1)
Rugs, Oriental
(1)
Rural conditions
(4)
Rural development
(27)
Rural development projects
(7)
Rural industries
(3)
Rural poor
(4)
Rural population
(2)
Rural populations
(6)
Rural roads
(1)
Rural schools.
(1)
Rural transportation
(1)
Rush, Benjamin, 1746-1813
(1)
Russell, Bertrand, 1872-1970
(1)
Russia
(17)
Russia (Federation)
(20)
Russia (Federation). Federal'noe Sobranie Gosudarstvennaia Duma
(1)
Russian Germans
(2)
Russian language
(1)
Russian literature
(1)
Russo-Finnish War, 1939-1940
(2)
Rust (Computer program language)
(1)
Rutgers University
(1)
Ruth, Babe, 1895-1948
(1)
Rwanda
(8)
Saccharomyces cerevisiae
(1)
Sacco-Vanzetti Trial, Dedham, Mass., 1921
(1)
Sacred books
(6)
Sacred space
(2)
Safe places
(1)
Safety education
(3)
Safety regulations
(1)
Sagalassos (Extinct city)
(2)
Sagas.
(1)
Said, Edward W.
(1)
Sailing.
(1)
Sails
(1)
Saint Augustine (Fla.)
(3)
Saint Helens, Mount (Wash.)
(4)
Saint Lawrence Seaway
(1)
Saint Paul Metropolitan Area (Minn.)
(2)
Saint Petersburg (Russia)
(2)
Salamanders
(2)
Sales accounting.
(1)
Saline water conversion
(3)
Salinity
(1)
Salmon
(8)
Salmon fisheries
(4)
Salmon fishing
(4)
Salmon industry
(3)
Salmonella
(3)
Salmonellosis.
(1)
Salt
(1)
Salt industry and trade
(1)
Saltspring Island (B.C.)
(1)
Salvage (Waste, etc.)
(2)
Salvage archaeology.
(6)
Same sex marriage
(1)
Sampling (Statistics)
(2)
San Diego Zoo
(2)
San Francisco (Calif.)
(15)
San Francisco Bay Watershed (Calif.)
(2)
San Francisco Earthquake, Calif., 1906
(2)
San Gabriel Mountains (Calif.).
(1)
San Juan Teotihuacan (Mexico)
(1)
Sand dunes.
(3)
Sandia National Laboratories.
(1)
Sanitation Workers Strike, Memphis, Tenn., 1968
(1)
Santa Claus.
(1)
Santa Fe Institute (Santa Fe, N.M.)
(1)
Santorini Volcano (Greece)
(1)
Sargent, John Singer, 1856-1925
(1)
Sarnoff, David, 1891-1971
(1)
SARS (disease)
(2)
Saskatchewan
(2)
Satellite meteorology
(18)
Satellites
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Satire in art
(3)
Satire, English
(1)
Satire, French
(2)
Saturn (Planet)
(8)
Saturn probes
(4)
Saturniidae
(1)
Sauerkraut
(1)
Saurischia
(1)
Savile Row (London, England)
(1)
Saving and investment
(6)
Savings accounts
(1)
Savings and loan association failures
(1)
Saxophonists
(1)
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