Old world monkeys evolution, systematics, and behavior (proceedings of the coference ... held at Burg Wartenstein, Austria, July 5-14, 1969) edited by J.R. Napier and P.H. Napier. - New York Academic Press 1970. - 660pages illustrations ; 24 cm. ISBN: 0125138601 Subjects--Topical Terms: Cercopithecidae.Apes.