Simmonds, N.W.  <br/><br/>
Principles of crop improvement  (Book) 

 - London  Longman Group  1979 
 - 408 p.  23 cm. 
<br/><br/><label>ISBN: </label>0582446309 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop improvement Plant breeding
<br/><br/><label>Universal Decimal Class. No.: </label>631.52 SIM  / 6617