Challenging biological problems :  directions toward their solution / 
edited by John A. Behnke. 
 - New York :  Oxford University Press,  1972. 
 - x, 502 p. :  ill. ;  24 cm. 
<br/><br/> The American Institute of Biological Sciences : 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>019501619X (cased) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Social aspects.