APA

Ketelbey C. D. M., . (1973). History of modern times from 1789. : Oxford University Press, New Delhi.

Chicago

Ketelbey C D M, . 1973. History of modern times from 1789. : Oxford University Press, New Delhi.

Harvard

Ketelbey C. D. M., . (1973). History of modern times from 1789. : Oxford University Press, New Delhi.

MLA

Ketelbey C D M, . History of modern times from 1789. : Oxford University Press, New Delhi. 1973.