TY  - BOOK
ED  - British Standards Institution
TI  - Specification for factory-built assemblies of switchgear and controlgear for voltages up to and including 1000 V a.c. and 1200 V a.c. : part I general requirement
PY  - 1977///
CY  - [London]
PB  - International Electrotechnical Commission
ER  -