Raven, Peter H.,  <br/><br/>
Biology of plants / 

 - Third edition 
 - New York :  Worth Publishers,  1981. 
 - 686 p. :  il., tablas, mapas, fotografías ;  28 cm. 
<br/><br/><br/>Ingles 
<br/><br/><label>ISBN: </label>0879011327  Normal 
<br/><br/><label>Dewey Class. No.: </label>581  581