TY  - BOOK
AU  - Theraja, B L.
AU  - Theraja,A K  .
TI  - Text book of electrical technology, Vol 3 / 
SN  - 81-219-1146-0
U1  - 621.301 
PY  - 2005///
CY  - New Delhi : 
PB  - S.Chand and Co , 
ER  -