Simmonds, Normand Wilison <br/><br/>
Principles of crop improvement / 
N.W. Simmonds 
 - xiv, 408 p. :  il. ;  23 cm. 
<br/><br/><label>ISBN: </label>0582455863 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CRECIMIENTO (PLANTAS)
<br/><br/><label>Dewey Class. No.: </label>631.53  / S54p