Turk, Jonathan <br/><br/>
Ecosysytems, energy, population 

 - Philadelphia:  B.Saunders,  1975. 
 -  296p. 
<br/><br/> PB 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>0721689302 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology<br/>Human ecology
<br/><br/><label>Dewey Class. No.: </label>301.31  / ECO