Παραπομπή APA
Richter, H. P. 1. (1941). Practical electrical wiring: Residential, farm, and industrial; based on the 1940 National electrical code. New York: McGraw-Hill.
Παραπομπή Chicago StyleRichter, H. P. 1900-1978. Practical Electrical Wiring: Residential, Farm, and Industrial; Based On the 1940 National Electrical Code. New York: McGraw-Hill, 1941.
Παραπομπή MLARichter, H. P. 1900-1978. Practical Electrical Wiring: Residential, Farm, and Industrial; Based On the 1940 National Electrical Code. New York: McGraw-Hill, 1941.
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