Dasmann, R. F.  1919- <br/><br/>
Environmental conservation 
Raymond F. Dasmann 
 - 5th ed. 
 - New York :  John Wiley & Sons,  1984 
 - 486 p.  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>047189141X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources<br/>Ecology<br/>Human ecology