Speaking of apes :  a critical anthology of two-way communication with man / 
edited by Thomas A. Sebeok and Jean Umiker-Sebeok. 
 - New York :  Plenum Press,  1980. 
 - 480 pages :  25 cm. 
 - Topics in contemporary semiotics .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0306402793 
<br/><br/><label>LCCN: </label>79-17714 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chimpanzees--Psychology<br/>Human--animal communication<br/>Language and languages<br/>Animal communication