TY  - GEN
AU  - Simmonds, N.W.
AU  - Smartt, J.
TI  - Principles of crop improvement
SN  - 9780632041916
U1  - 631.52 
PY  - 1999///
CY  - London
PB  - Blackwell Science Ltd
KW  - Crop Improvement
KW  - Plant Breeding
ER  -