Part of Prentice Hall's Primate Field Studies series.  Apes of the Impenetrable Forest (The Behavioral Ecology of Sympatiric Chimpanzees and Gorillas) offers students a scholary and relevant study.  This is an account of a nine year project on the behavior and ecology of chimpanzees and mountain gorillas living in the same African forest.  Students are able to see the way in which a project is planned and put into action as well as the results

"I found this book to be very interesting, enjoyable and easy to read, and I would certainly recommend it to anyone interested in great apes."
Sonya P. Hill, Chester Zoo