TY  - BOOK
AU  - Bureau of Indian Standards
TI  - IS: 13947 (Part 5/Sec. 1) - 1993/IEC Pub. 947 - 5 - 1 - 1990; Specification for low-voltage switchgear and controlgear Part 5 control circuit devices and switching elements sec. 1 Electromechanical control circuit devices
PY  - 1993///
CY  - New Delhi
PB  - BIS
ER  -