Environmental science / 
by Amos Turk,... et al. 
 - Philadelphia :  W. B. Saunders,  1974 
 - 563 p. :  ill. ;  28 cm. 
 - Saunders golden series .
<br/><br/><label>ISBN: </label>0721689280 
<br/><br/><label>LCCN: </label>73-86387 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment<br/>Environmental pollution<br/>Environmental health