TY  - BOOK
AU  - Chinnappa, B 
AU  - Venkatesh Murthy, C V 
TI  - Economics of energy use in cropping systems
SN  - 9789380428413
U1  - 388.16 
PY  - 2012///
CY  - Delhi
PB  - Narendra publishing house 
KW  - Demand of energy
ER  -