TY  - BOOK
AU  - Gupta,U.S.
TI  - Crop improvement: Physiological attributes / 
SN  - 812040596X
U1  - 631.558 GUP 1 22nd ed. 
PY  - 1992///
CY  - New Delhi
PB  - Oxford and IBH Publishing Company Private Limited
KW  - Agriculture
KW  - Materials
KW  - Crop
KW  - Physiological
ER  -