TY  - GEN
AU  - Olle.I.Elgerd.
TI  - Electric Energy System
T2  - 22864
SN  - 007099286X
U1  - 621.3 
PY  - 1991///
CY  - New Delhi.
PB  - Tata Mc Graw hill Pvt.Ltd.
KW  -  Energy System
ER  -