APA (7th ed.) Citation

Duff, C. (1957). The truth about Columbus and the discovery of America ([New ed.). Jarrolds.

Chicago Style (17th ed.) Citation

Duff, Charles. The Truth About Columbus and the Discovery of America. [New ed. London: Jarrolds, 1957.

MLA (9th ed.) Citation

Duff, Charles. The Truth About Columbus and the Discovery of America. [New ed. Jarrolds, 1957.