APA استشهاد

Toynbee, A. J., & Somervell, D. C. 1. (1947). A study of history: Abridgement of volumes I-VI ([First American ed.].). New York: Oxford University Press.

استشهاد بنمط شيكاغو

Toynbee, Arnold Joseph, و D. C. 1885-1965 Somervell. A Study of History: Abridgement of Volumes I-VI. [First American ed.]. New York: Oxford University Press, 1947.

MLA استشهاد

Toynbee, Arnold Joseph, و D. C. 1885-1965 Somervell. A Study of History: Abridgement of Volumes I-VI. [First American ed.]. New York: Oxford University Press, 1947.