TY  - BOOK
AU  - I.E.C.
TI  - IEC: 60947-5-1-1999 (Amendment 2); Low-voltage switchgear and controlgear Part 5-1 - control circuit devices and switching elements - electromechanical control circuit devices
PY  - 1999///
CY  - Geneva
PB  - I.E.C.
ER  -