• 318 Videos, Slides, Films

• 116 History
• 70 Study and teaching
• 30 Research
• 29 Medicine
• 27 Health planning
• 27 Social medicine
• 25 Politics and government
• 24 Communicable diseases
• 24 Epidemiology
• 24 Infection
• 23 Case management services
• 23 Hospitals
• 23 Medical microbiology
• 22 Battles
• 22 Depressions
• 18 Authorship
• 18 Diseases
• 18 World War, 1939-1945
• 16 British literature
• 16 History and criticism
• 16 Technology
• 16 Vocational guidance
• 13 Economic conditions
• 13 Operations research
• 12 American literature

• 318 Films for the Humanities & Sciences (Firm)
• 85 Arts and Entertainment Network
• 49 Infobase
• 42 Public Broadcasting Service (U.S.)
• 40 BBC Worldwide Ltd
• 22 Burns, Ken, 1953-
• 19 Video Education Australasia
• 14 National Educational Video, Inc
• 12 4 Learning (Firm)
• 10 Radiotelevisión Española
• 9 ABC News Productions
• 8 Davidson Films Inc
• 7 Open University
• 5 National Professional Resource
• 5 Québec/Amérique International
• 5 Telepool GmbH
• 4 Hossick, Malcolm
• 4 RDF Media Group
• 3 Learning Zone Express (Firm)
• 3 Meridian Education Corporation
• 3 National Geographic Television & Film
• 3 SW Pictures Ltd
• 2 Fry, Stephen, 1957-
• 2 Macaulay, David

• 308 English
• 10 Spanish
• 1 Italian
• 1 Multiple languages

• 74 United States
• 10 Spain
• 5 Solar system
• 4 Europe
• 3 Africa
• 2 Former Soviet republics
• 2 Galaxies
• 1 Africa, North
• 1 Africa, Sub-Saharan
• 1 Antietam (Md.)
• 1 Earth (Planet)
• 1 Middle East
• 1 North America
• 1 Russia
• 1 Southeast Asia

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