Dasmann, Raymond F <br/><br/>
Environmental conservation 

 - 4th ed. 
 - New York  John Wiley and sons, inc  1959 
 - Xi, 427 p.; ill ,24cm 
<br/><br/><label>ISBN: </label>471196029 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation<br/>Conservation of natures resources<br/>Ecology<br/>Environmental conservation<br/>Human ecology