APA (7th ed.) Citation

Hopper, V. F. (1938). Medieval number symbolism: Its sources, meaning, and influence in thought and expression. Columbia Univ. Press.

Chicago Style (17th ed.) Citation

Hopper, Vincent Foster. Medieval Number Symbolism: Its Sources, Meaning, and Influence in Thought and Expression. New York: Columbia Univ. Press, 1938.

MLA (9th ed.) Citation

Hopper, Vincent Foster. Medieval Number Symbolism: Its Sources, Meaning, and Influence in Thought and Expression. Columbia Univ. Press, 1938.