TY  - BOOK
AU  - Verma, G P & Khaddar, N Ray V K
TI  - Advancement of crops and monitoring of environment
SN  - 8170193109
U1  - 633 VER 
PY  - 1988///
CY  - Gupta Road, New Delhi
PB  - Today & Tomorrow's Printers & Publishers
N1  - Includes appendix
ER  -