• 51 Videos, Slides, Films

• 51 History
• 35 Depressions
• 14 African Americans
• 13 History and criticism
• 11 Social life and customs
• 10 Music
• 10 Musical form
• 10 Study and teaching
• 10 Style, Musical
• 6 Moyers, Bill D
• 5 Immigrants
• 5 Jazz
• 5 Labor
• 5 Mass media
• 4 Art
• 4 Economic conditions
• 4 Industries
• 4 Mass media and culture
• 4 Political aspects
• 3 Sports
• 3 World War, 1939-1945
• 2 Civil rights
• 2 Culture
• 2 Earhart, Amelia, 1897-1937

• 51 Films Media Group
• 51 Films for the Humanities & Sciences (Firm)
• 19 Public Broadcasting Service (U.S.)
• 13 Burns, Ken, 1953-
• 10 Arts and Entertainment Network
• 8 Moyers, Bill D
• 8 Sunrise Media LLC
• 7 Infobase
• 6 A&E Television Networks, LLC
• 1 4 Learning (Firm)
• 1 Butler Films
• 1 Cambridge Educational (Firm)
• 1 Granada Media (Firm)
• 1 KCTS (Television station : Seattle, Wash.)
• 1 Payson, Parker
• 1 Schauble, Justin
• 1 South Hill Films

• 51 English

• 51 United States
• 2 New York (N.Y.)
• 1 Europe
• 1 Germany
• 1 Grand Coulee Dam (Wash.)

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