Gaya APA

Richter, H., Schwan, W, C. (1990). Practical electrical wiring : residential, farm, and industrial (15th ed). New York: McGraw-Hill.

Gaya MLA

Richter, H.P.., Schwan, W., Creighton. "Practical electrical wiring : residential, farm, and industrial". 15th ed New York: McGraw-Hill, 1990. Text.