TY  - BOOK
AU  - Chopra,V.L.
AU  - Khoshoo,T.N.
ED  - Indian Councial of Agricultural Research, New Delhi
TI  - Conservation for production Agriculture
U1  - 639.9082 
PY  - 1986///
CY  - New Delhi
PB  - I C A R
KW  - Agricultural ecology
KW  - Congresses
KW  - Agricultural conservation
ER  -