APA (7th ed.) Citation

Timbie, W. H., Higbie, H. H., & Caldwell, S. H. (1939). Essentials of alternating currents (2d ed.). Wiley: Chapman & Hall.

Chicago Style (17th ed.) Citation

Timbie, W. H., H. H. Higbie, and Samuel Hawks Caldwell. Essentials of Alternating Currents. 2d ed. New York : London: Wiley: Chapman & Hall, 1939.

MLA (9th ed.) Citation

Timbie, W. H., et al. Essentials of Alternating Currents. 2d ed. Wiley: Chapman & Hall, 1939.