National Joint Apprenticeship Training Committee. (2005). Electrical field reference handbook: Revised for the 2005 national electrical code.(Sách phôtô) (In lần thứ 1.). American: Thomson Delmar Learning.
Styl ChicagoNational Joint Apprenticeship Training Committee. Electrical Field Reference Handbook: Revised for the 2005 National Electrical Code.(Sách Phôtô). In lần thứ 1. American: Thomson Delmar Learning, 2005.
Citace podle MLANational Joint Apprenticeship Training Committee. Electrical Field Reference Handbook: Revised for the 2005 National Electrical Code.(Sách Phôtô). In lần thứ 1. American: Thomson Delmar Learning, 2005.
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