| Electric engineering - 1995 - 1090 pages
1978 edition updated by: Tentative interim amendment 70-78-6 to the National electrical code, NFPA 70-1978; approved for release June 20, 1979. | |
| Electric wiring - 1992 - 958 pages
1978 edition updated by: Tentative interim amendment 70-78-6 to the National electrical code, NFPA 70-1978; approved for release June 20, 1979. | |
| Electric engineering - 1986 - 836 pages
1978 edition updated by: Tentative interim amendment 70-78-6 to the National electrical code, NFPA 70-1978; approved for release June 20, 1979. | |
| Electric engineering - 1984 - 770 pages
1978 edition updated by: Tentative interim amendment 70-78-6 to the National electrical code, NFPA 70-1978; approved for release June 20, 1979. | |
| Electric engineering - 1983 - 770 pages
1978 edition updated by: Tentative interim amendment 70-78-6 to the National electrical code, NFPA 70-1978; approved for release June 20, 1979. | |
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