TY  - BOOK
AU  - ISA
TI  - Proceedings of National Symposium on Efficient Cropping Systems Zones of India (7 - 10, January, 1988) / 
U1  - 631.58 
PY  - 1992///
CY  - .- New Delhi
PB  - : Indian Society of Agronomy
KW  - Technology (Applied Sciences)
KW  - Agriculture and Related Technologies
KW  - Cropping Systems
KW  - Proceedings
KW  - India
ER  -