TY  - BOOK
AU  - Allan,D.
TI  - Electronical installations: : NVQ and technical certificate book 1. 
SN  -  978-0-435467-04-3
AV  - TK3221.A57 
PY  - 2008///
CY  - London
PB  - Heinemann
KW  - Electronic wiring-mathematics
KW  - Buildings-electronic equpment-intallation
ER  -