National Joint Apprenticeship and Training Committee for the Electrical Industry. (2009). Field reference handbook: [revised for the NEC 2008]. Clifton Park, NY: Delmar Cengage Learning.
Styl ChicagoNational Joint Apprenticeship and Training Committee for the Electrical Industry. Field Reference Handbook: [revised for the NEC 2008]. Clifton Park, NY: Delmar Cengage Learning, 2009.
Citace podle MLANational Joint Apprenticeship and Training Committee for the Electrical Industry. Field Reference Handbook: [revised for the NEC 2008]. Clifton Park, NY: Delmar Cengage Learning, 2009.
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