APA (7th ed.) Citation

Moullin, E. B. (1950). The principles of electromagnetism (2d ed.). Clarendon Press.

Chicago Style (17th ed.) Citation

Moullin, E. B. The Principles of Electromagnetism. 2d ed. Oxford: Clarendon Press, 1950.

MLA (9th ed.) Citation

Moullin, E. B. The Principles of Electromagnetism. 2d ed. Clarendon Press, 1950.