TY  - BOOK
AU  - Helma,Lawson E.T.
TI  - Electric light and power installations
U1  - 621.32 
PY  - 1954///
CY  - London
PB  - Cassell
KW  - Electric lighting
KW  - Installation
KW  - Wiring
KW  - Electric wiring
N1  - Includes index
ER  -