The orang utan : its biology and conservation - Workshop on the Conservation of the Orang Utan (1979 : Rotterdam, Netherlands).; Boer, Leobert E. M. de. (The Hague : W. Junk Publishers, 1982)
'This volume mainly consists of the contributions, presented at the'Workshop on the Conservation of the Orang Utan,' held October 1979 at Rotterdam'--T.p. verso.
Includes bibliographies and index.
Keywords: Orangutan -- Congresses; Wildlife conservation -- Congresses