TY  - GEN
AU  - Roy,J.D.
AU  - Roy, A.K. 
TI  - Non-conventional sources of energy
SN  - 8186308296
U1  - 333.79 
PY  - 2014///
CY  - New Delhi : 
PB  - Standard publishers and distributors
KW  - Renewable energy sources
ER  -