Natural history, social behavior, reproduction, vocalizations, prehension / 
editor ; Duane M. Rumbaugh ; contributors: W. Y. Brockelman ... et al. 
 - Basel :  S. Karger,  1974. 
 - vii, 209 p. :  ill. ;  25 cm. 
 - Gibbon and siamang  v. 3. .
<br/><br/><label>ISBN: </label>3805516029 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gibbons.<br/>Gibbons--Behavior.