APA (7th ed.) Citation

Toynbee, A., & Somervell, D. C. (1949). A study of history (2nd impression.). Oxford University Press.

Chicago Style (17th ed.) Citation

Toynbee, Arnold, and D. C. Somervell. A Study of History. 2nd impression. London [etc.]: Oxford University Press, 1949.

MLA (9th ed.) Citation

Toynbee, Arnold, and D. C. Somervell. A Study of History. 2nd impression. Oxford University Press, 1949.