Soccthwick,  Charles H  . <br/><br/>
Ecology and the guality of our environment /  
by Charles H. Soccthwick. 
 - New York :   D Van Nostrand ,   1972. 
 - 319p. :   figures ;   22cm  1 CD .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label> USD 12,95 (Hb) 
<br/><br/><label>Subjects--Index Terms: </label>ECOLOGY 
<br/><br/><label>Dewey Class. No.: </label>577  / SOU/E