TY  - BOOK
AU  - Watkins, A.J.
TI  - Electrical installation calculations : : advanced 
SN  - 9781856176644
AV  - TK 454 .W38 2009 
PY  - 2009///
CY  - [Place of publication not identifed]
PB  - [publisher not identified]
N1  - Electrical installation calculations: advanced /, Electrical
ER  -