Lua APA (7ú heag.)

Richter, H. P. (1976). Practical electrical wiring: Residential, farm and industrial (10th ed.). G. M. S.

Lua i Stíl Chicago (17ú heag.)

Richter, Herbert P. Practical Electrical Wiring: Residential, Farm and Industrial. 10th ed. Quezon City: G. M. S, 1976.

Lua MLA (9ú heag.)

Richter, Herbert P. Practical Electrical Wiring: Residential, Farm and Industrial. 10th ed. G. M. S, 1976.

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