Raven, P. H. <br/><br/>
Biology of plants/ 
Peter H. Raven; Ray F. Evert and  Helena Curtis. 
 - 2nd. 
 - New York :  Worth Publishers,  1971. 
 - xv, 686 p.:  ill.;  27 cm. 
<br/><br/> Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0879010541 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany.
<br/><br/><label>LC Class. No.: </label>DUCE QK471.R25