Cita APA (7a ed.)

Toynbee, A. J., & Somervell, D. (1946). A study of history. Geoffrey Cumberlege, Oxford University Press.

Cita Chicago Style (17a ed.)

Toynbee, Arnold J., y D.C Somervell. A Study of History. London: Geoffrey Cumberlege, Oxford University Press, 1946.

Cita MLA (9a ed.)

Toynbee, Arnold J., y D.C Somervell. A Study of History. Geoffrey Cumberlege, Oxford University Press, 1946.