Clapham, Wentworth B. <br/><br/>
Human ecosystems 
W.B. Clapham, Jr. 
 - New York  Macmillan  c1981. 
 - xii, 419 p.  ill. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0023225106 
<br/><br/><label>LCCN: </label>80016692  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology
<br/><br/><label>LC Class. No.: </label>GF41  / .C527 
<br/><br/><label>Dewey Class. No.: </label>304.2