Weaver, John E.   1884-1966. <br/><br/>
Plant ecology /  
by John E. Weaver and Frederic E. Clements. 
 - 2nd ed. 
 - New York :   McGraw-Hill,   1938. 
 - xxii, 601 p. :   il., mapa color. 
 - McGraw-Hill publications in the botanical sciences .
<br/><br/><label>LCCN: </label>38009480  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecologia vegetal.
<br/><br/><label>Dewey Class. No.: </label>581.5