Weaver, John E. <br/><br/>
Plant ecology / 
John E. Weaver and Frederick E. Clements 
 - 2a ed. 
 - New York :   McGraw-Hill,  1966 
 - xxii, 601 p.:   ilustraciones, figuras 
<br/><br/><label>ISBN: </label>07-068750-1 
<br/><br/><label>LCCN: </label>165673 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología vegetal
<br/><br/><label>Dewey Class. No.: </label>581.5 W43