TY  - BOOK
AU  - Simmonds, N. W.
AU  - Smartt, J.
TI  - Principles of crop improvement
SN  - 9780632041916
U1  - 631.52 
PY  - 1999///
CY  - Oxford
PB  - Blackwell Science
KW  - Cultivation and Harvesting
ER  -