Turk, Amos. <br/><br/>
Ecology, pollution, environment 
[by] Amos Turk, Jonathan Turk [and] Janet T. Wittes. 
 - Philadelphia,  Saunders,  1972. 
 - ix, 217 p.  illus.  23 cm. 
 - Saunders golden series .
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0721691388 
<br/><br/><label>LCCN: </label>74176218  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution.<br/>Ecology.<br/>Population.
<br/><br/><label>LC Class. No.: </label>TD174  / .T87 1972 
<br/><br/><label>Dewey Class. No.: </label>333.7