APA (7th ed.) Citation

Simpson, J. Y. (1971). Landmarks in the struggle between science and religion. Kennikat Press.

Chicago Style (17th ed.) Citation

Simpson, James Young. Landmarks in the Struggle Between Science and Religion. Port Washington, N.Y.: Kennikat Press, 1971.

MLA (9th ed.) Citation

Simpson, James Young. Landmarks in the Struggle Between Science and Religion. Kennikat Press, 1971.