Portmann, Adolf,  1897- <br/><br/>
Animal camouflage / 
Translated by A. J. Pomerans 
 - Ann Arbo :  University of Michigan,  1959 
 - 111 p. :  ill. ;  22 cm. 
<br/><br/><br/>eng and ger 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Camouflage (Biology)