APA (7th ed.) Citation

Oman, C. (1900). England in the nineteenth century. Longmans, Green, and co.; [etc., etc.].

Chicago Style (17th ed.) Citation

Oman, Charles. England in the Nineteenth Century. New York: Longmans, Green, and co.; [etc., etc.], 1900.

MLA (9th ed.) Citation

Oman, Charles. England in the Nineteenth Century. Longmans, Green, and co.; [etc., etc.], 1900.