McClung, Robert M. <br/><br/>
How animals hide. 
Robert M. McClung. 
 - Washington, D.C.  National Geographic Society  1973 
<br/><br/><label>ISBN: </label>0870441442 9780870441448 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Camouflage (Biology)