Cita APA (7th ed.)

Pender, H., & Del Mar, W. A. (1949). Electrical engineers’ handbook (4th edition.).

Cita Chicago (17th ed.)

Pender, Harold, i William Arthur Del Mar. Electrical Engineers’ Handbook. 4th edition. New York, New York : Willey, 1949.

Cita MLA (9th ed.)

Pender, Harold, i William Arthur Del Mar. Electrical Engineers’ Handbook. 4th edition. 1949.