TY  - BOOK
AU  - Simmonds, N. W. 
AU  - Smartt, J.
TI  - Principles of crop improvement
SN  - 0632041919
U1  - 631.52 
PY  - 1999///
CY  - London
PB  - Blackwell Science
KW  - Crop Improvement
N1  - Includes bibliographical references
ER  -