TY  - BOOK
AU  - Symposium on Crop Improvement. Ludhiana, Feb.23-27,1987
TI  - Proceedings
U1  - 631.53 S99P 
PY  - 1987///
CY  - Delhi
PB  - Crop Improvement Society of India
KW  - PLANT -- BREEDING -- CONGRESSES
ER  -