APA استشهاد

Ketelbey, C. (1965). History of Modern Times. Oxford University.

استشهاد بنمط شيكاغو

Ketelbey, C.D.M. History of Modern Times. London: Oxford University, 1965.

MLA استشهاد

Ketelbey, C.D.M. History of Modern Times. Oxford University, 1965.