APA (7th ed.) Citation

Mitchell, S. (1938). Horatio Seymour of New York. Harvard university press.

Chicago Style (17th ed.) Citation

Mitchell, Stewart. Horatio Seymour of New York. Cambridge, Mass.: Harvard university press, 1938.

MLA (9th ed.) Citation

Mitchell, Stewart. Horatio Seymour of New York. Harvard university press, 1938.