Weaver, John E. . <br/><br/>
Plant Ecology /  Textual Documents 
John E. Weaver and Frederic E. Clements. 
 - 2nd ed. / 
 - New York :  McGraw - Hill book company ,  C1938. 
 - xxii,601p. :  ill ;  23cm . 
<br/><br/>Index 
<br/><br/><label>ISBN: </label> HB 
<br/><br/><label>Subjects--Index Terms: </label>Botany Plant Ecology G-Botany 
<br/><br/><label>Dewey Class. No.: </label>581.5  / W 379 P