TY  - BOOK
AU  - International Electrotechnical Commission
TI  - IEC: 439-3 - 1990 (Amendt. No.2 - 1993); Low-voltage switchgear and controlgear assemblies Part 3 - particular requirements for low-voltage swithger and controlgear assmblies intended to be installed in places where unskilled persons have access for thier use-distribution boards
PY  - 1993///
CY  - Geneva
PB  - IEC
ER  -