Environmental science / 
by Amos Turk, et al. 
 - Philadelphia,  W. B. Saunders Co.,   c1974. 
 - xiii, 563 p.  illus.  28 cm. 
 - Saunders golden series .
<br/><br/>Includes bibliographies. 
<br/><br/>
<br/><br/><label>ISBN: </label>0721689280 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.<br/>Environmental sciences.
<br/><br/><label>Dewey Class. No.: </label>Cir 500 En8 1974