TY  - BOOK
AU  - Singh, Surendra
AU  - Mittal, J.P.
TI  - Energy in production agriculture
SN  - 8170994071
U1  - 333.79660954/SIN/E 
PY  - 1992///
CY  - New Delhi
PB  - Mittal pub.
KW  - Agriculture
KW  - Energy consumption
KW  - India
ER  -