Watt K E F <br/><br/>
Principles of environmental science 

 - New York       McGraw-Hill          1973 
 - xiv,319p.  cm. 
<br/><br/><label>Standard No.: </label>39650 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>G:5, L3