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Acem: PMS
BEI : We have the power to help you
Wandel & Goltermann [catálogo] : 1988 edition
Association des stations d`essais françaises d`appareillage électrique industriel à basse tension
Mosdorfer. Fittings and accessoires for high voltage overhead lines
Legrand. catálogo 1985/86
Adret. Electronic measurements for industry and research
ASEA. Catalogue 1984-85
AMPACT. Internally fired connection systems
General Electric. Industrial lighting
Footcandle [or ESI] recommendations for productivity in the office and industry / General Electric