Simmonds, N. W.,  1922- <br/><br/>
Principles of crop improvement / 
N.W. Simmonds, J. Smartt ; with chapter 9 contributed by S. Millam and W. Spoor. 
 - 2nd ed. 
 - Oxford ; Malden, MA, USA :  Blackwell Science,  c1999. 
 - xii, 412 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>9780632041916 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop improvement. 
<br/><br/><label>Dewey Class. No.: </label>631.52   / SIM 1999