APA (7th ed.) Citation

Warren, S. (1943). American freethought: 1860 - 1914. Columbia Univ. Press [u.a.].

Chicago Style (17th ed.) Citation

Warren, Sidney. American Freethought: 1860 - 1914. New York [u.a.]: Columbia Univ. Press [u.a.], 1943.

MLA (9th ed.) Citation

Warren, Sidney. American Freethought: 1860 - 1914. Columbia Univ. Press [u.a.], 1943.

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