APA (7th ed.) Citation

Ketelbey, D. M. (1929). A history of modern times: From 1789 to the present day. Thomas Y. Crowell Co.

Chicago Style (17th ed.) Citation

Ketelbey, Doris Mabel. A History of Modern Times: From 1789 to the Present Day. New York: Thomas Y. Crowell Co, 1929.

MLA (9th ed.) Citation

Ketelbey, Doris Mabel. A History of Modern Times: From 1789 to the Present Day. Thomas Y. Crowell Co, 1929.

Warning: These citations may not always be 100% accurate.