foin, Theodore C.  x <br/><br/>
Ecological system and the environment  x 

 - x 
 - Boston ; London  Houghton Mifflin  1976 
 - xv, 591 
<br/><br/>Includes 
<br/><br/><label>ISBN: </label>0395206669 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology Biology 
<br/><br/><label>Dewey Class. No.: </label>574.5/F659e