Incoming Resources
- The apes, created and written by John Bonnett Wexo ; zoological consultant, Charles R. Schroeder ; scientific consultants, Frederick A. King, Harold M. McClure, Richard Tenaza
- Orangutans, by Joanne Mattern ; consulting editor, Gail Saunders-Smith ; content consultant, Tanya Dewey
- Great ape odyssey, by Biruté Mary Galdikas ; photographs by Karl Ammann ; foreword by Jane Goodall
- Gorillas, designed and written by Althea ; illustrated by Barbara McGirr
- The great apes, by Jennifer Lindsey
- Among the great apes, adventures on the trail of our closest relatives, Paul Raffaele
- Gorillas and other apes