Clapham, Wentworth B.,  1942-. <br/><br/>
Natural ecosystems / 
[by] W. B. Clapham, Jr. 
 - New York :  Macmillan,  [1973] 
 - viii, 248 pages :  illustration ;  26 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>72077146 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.<br/>Ecology.
<br/><br/><label>LC Class. No.: </label> / .C45