APA (7th ed.) Citation

Speaight, R. (1949). Thomas Becket (2d ed.). Longmans, Green and co..

Chicago Style (17th ed.) Citation

Speaight, Robert. Thomas Becket. 2d ed. London, New York [etc.]: Longmans, Green and co., 1949.

MLA (9th ed.) Citation

Speaight, Robert. Thomas Becket. 2d ed. Longmans, Green and co., 1949.