APA (7th ed.) Citation

Smith, L. P. (1966). The English language (3rd ed.). Oxford U.P..

Chicago Style (17th ed.) Citation

Smith, Logan Pearsall. The English Language. 3rd ed. London, New York [etc.]: Oxford U.P., 1966.

MLA (9th ed.) Citation

Smith, Logan Pearsall. The English Language. 3rd ed. Oxford U.P., 1966.