Hardin, Garrett <br/><br/>
Biology : Its Principles and Implications 
By Garrett Hardin 
 - Second Edition 
 - San Francisco  W.H. Freeman and Company  1966 
 - viii, 771 pages, 25 cm. 
<br/><br/> includes appendix & index 
<br/><br/><label>ISBN: </label>0-7167-0643-1 
<br/><br/><label>Dewey Class. No.: </label>574 H21 C2