Clapham, Wentworth B., 1942-  Clapham, Wentworth B., 1942- <br/><br/>
Human ecosystems / 
W.B. Clapham, Jr. 
 - New York :  Macmillan,  c1981. 
<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