APA (7th ed.) Citation

Potter, S. (1957). Modern linguistics. A. Deutsch; Essential Books.

Chicago Style (17th ed.) Citation

Potter, Simeon. Modern Linguistics. [London] : Fair Lawn, N.J.: A. Deutsch; Essential Books, 1957.

MLA (9th ed.) Citation

Potter, Simeon. Modern Linguistics. A. Deutsch; Essential Books, 1957.