• 3 DVDs

• 3 History
• 2 Audubon, John James, 1785-1851
• 2 Carson, Rachel, 1907-1964
• 2 Conservationists
• 2 Environmental aspects
• 2 Environmentalists
• 2 Ornithologists
• 2 Pesticides
• 1 Animal painters
• 1 Artists
• 1 Control
• 1 Painters
• 1 Science writers
• 1 Seton, Ernest Thompson, 1860-1946
• 1 Wildlife conservation
• 1 Wolves

• 4 Public Broadcasting Service (U.S.)
• 2 42nd Parallel Films
• 2 American Experience Films
• 2 Ferrari, Michelle
• 2 Florentine Films
• 2 Garey, Diane
• 2 Hott Productions
• 2 Hott, Lawrence R.
• 2 Katz, Cindy
• 2 PBS Distribution (Firm)
• 2 Platt, Oliver
• 2 Uz, Rafael de la
• 2 WNET (Television station : New York, N.Y.)
• 1 British Broadcasting Corporation
• 1 Chowder, Ken
• 1 Claus, Jeff
• 1 Gooder, Steve
• 1 Halpern, Nathan, 1978-
• 1 Hayden, Sophie
• 1 Hyman, Judy
• 1 Leith, Brian
• 1 Livingston, Peter R.
• 1 Lytle, Mark H.
• 1 Parker, Mary-Louise
• 1 Questar, Inc

• 5 English

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