Simmonds, N . W  <br/><br/>
Principles of crop improvement  
N . W SIMMONDS  
 - ESSEX  EL/B5/ LOMNGMAN  1979 
 - XIV 408P ILL  HBK 
<br/><br/><label>ISBN: </label>0582407370 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant breeding 
<br/><br/><label>LC Class. No.: </label>SB 123 . S5 1979