• 2 VHS Videocassettes

• 2 Animal communication
• 2 Bonobo
• 2 Chimpanzees
• 1 Baboons
• 1 Boysen, Sarah, 1949-
• 1 Cercopithecus aethiops
• 1 Cercopithecus mitis
• 1 Communication
• 1 Gorilla
• 1 Koko (Gorilla), 1971-2018
• 1 Language acquisition
• 1 Ohio State University. Primate Research Center
• 1 Pan paniscus
• 1 Pan troglodytes
• 1 Papio
• 1 Sequence (Linguistics)
• 1 Sign language

• 1 Boysen, Sarah, 1949-
• 1 Discovery Channel (Firm)
• 1 Discovery Channel Video (Firm)
• 1 Liebman, Andy
• 1 Patterson, Francine
• 1 Resolute Films, Inc
• 1 Savage-Rumbaugh, E. Sue, 1946-
• 1 Yamada, Denise
• 1 Zeller, Anne, 1947-

• 5 English

• 1 Nairobi (Kenya)

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