Portmann, Adolf,  1897- <br/><br/>
Animals as social beings / 
A. Portmann; translated from the Germa n by Oliver Coburn. 
 - London :  Hutchinson,  1961. 
 - 247 p. :  ill. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal behavior.