Ehrenfeld, David W. <br/><br/>
Biological conservation  /    
David W. Ehrenfeld. 
 - New York :   Holt, Rinehart and Winston Inc ,   1970 
 - xi,226 p. :    ill. ;    24 cm. 
 - Modern biology series.   .
<br/><br/><label>ISBN: </label>030800498 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation biology.--------
<br/><br/><label>Dewey Class. No.: </label>333.95 EHR