Clapham, Wentworth B. <br/><br/>
Natural ecosystems 
W.B. Clapham, Jr. 
 - 2nd ed. 
 - New York  Macmillan  c1983. 
 - ix, 282 p.  ill. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0023225203 (pbk.) 
<br/><br/><label>LCCN: </label>82009898  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology
<br/><br/><label>LC Class. No.: </label>QH541  / .C45 1983 
<br/><br/><label>Dewey Class. No.: </label>574.5