TY  - BOOK
AU  - Pratley,John B
TI  - Study notes for technicians
SN  - 07-084661--8
U1  - 621.3 
PY  - 1982///
CY  - London
PB  - Mc Graw hill book Company
KW  - Electrical energy
KW  - Electrical engineering
KW  - Principles-Electricity
N1  - V.1.Electrical and electronic principles
ER  -