Watt Kenneth E F <br/><br/>
Ecology and resource management 

 - New York       McGraw-Hill          1968 
 - xiii,450p.  cm. 
<br/><br/><label>Standard No.: </label>39628 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>G:5, K81;2