APA (7th ed.) Citation

Smith, A. L. (1964). Church and state in the Middle Ages. Barnes & Noble.

Chicago Style (17th ed.) Citation

Smith, A. L. Church and State in the Middle Ages. New York: Barnes & Noble, 1964.

MLA (8th ed.) Citation

Smith, A. L. Church and State in the Middle Ages. Barnes & Noble, 1964.

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