APA (7th ed.) Citation

Oman, C. W. C. (1891). Warwick, the Kingmaker. MacMillan.

Chicago Style (17th ed.) Citation

Oman, Charles William Chadwick. Warwick, the Kingmaker. London: MacMillan, 1891.

MLA (9th ed.) Citation

Oman, Charles William Chadwick. Warwick, the Kingmaker. MacMillan, 1891.

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