Whittaker, Robert Harding. <br/><br/>
Communities and ecosystems / 
by Robert H. Whittaker. 
 - 2nd ed. 
 - New York :   Macmillan,   1975. 
 - xviii, 385 p. :   ill. ;   24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.<br/>Ecological communities
<br/><br/><label>Dewey Class. No.: </label>577.82 WHI