APA (7th ed.) Citation

Thornton, A. P. (1968). For the file on Empire: Essays and reviews. Macmillan.

Chicago Style (17th ed.) Citation

Thornton, Archibald Paton. For the File on Empire: Essays and Reviews. London: Macmillan, 1968.

MLA (9th ed.) Citation

Thornton, Archibald Paton. For the File on Empire: Essays and Reviews. Macmillan, 1968.