Author: Sugardjito.
Title: Ecological constraints on the behaviour of Sumatran Orang-Utans (Pongo oygmaeus abelii) in the Gunung Leuser National Oark, Indonesia. Thesis.
Description: Utrecht, 1986. 141 pp. Soft cover, spine sl. dam.

Keywords: Zoology Apes Monkeys Primates Zoölogie Zoologie Apen Primaten