Simmonds N W <br/><br/>
Principles of crop improvement. 
Simmonds N W; Smartt J 
 - Oxford  Blackwell Science        1999 
 - xii,412p.  cm. 
<br/><br/><label>Standard No.: </label>27849 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>J3 : 5, N9