Earley, M. W., Sheehan, J. V., & Caloggero, J. M. (1996). National electrical code handbook 1996 (7th ed.). Quincy, MA: National Fire Protection Association.
Παραπομπή Chicago StyleEarley, Mark W., Joseph V. Sheehan, and John M. Caloggero. National Electrical Code Handbook 1996. 7th ed. Quincy, MA: National Fire Protection Association, 1996.
Παραπομπή MLAEarley, Mark W., Joseph V. Sheehan, and John M. Caloggero. National Electrical Code Handbook 1996. 7th ed. Quincy, MA: National Fire Protection Association, 1996.
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