Clapham, Wentworth B.,  1942- <br/><br/>
Natural ecosystems / 
W.B. Clapham, Jr. 
 - 2nd ed. 
 - New York :  Macmillan,  c1983. 
 - ix, 282 p. :  ill. 
<br/><br/><label>ISBN: </label>0023225203. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.