Foin, Theodore C. <br/><br/>
Ecological systems and the environment / 
Theodore C. Foin, Jr. 
 - Boston :  Houghton Mifflin,  1976. 
 - xv, 591 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0395206669 (cased) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology.<br/>Environmental policy.<br/>Environmental protection.