APA (7th ed.) Citation

Friend, G., & Morris, D. J. (1975). Kilowatt counter. Alternative Sources of Energy Magazine.

Chicago Style (17th ed.) Citation

Friend, Gil, and David J. Morris. Kilowatt Counter. Milaca, Minn.: Alternative Sources of Energy Magazine, 1975.

MLA (9th ed.) Citation

Friend, Gil, and David J. Morris. Kilowatt Counter. Alternative Sources of Energy Magazine, 1975.