APA (7th ed.) Citation

Horizon (New York, 1958- )., & Jacobs, D. (1969). Master builders of the Middle Ages. American Heritage Pub.

Chicago Style (17th ed.) Citation

Horizon (New York, 1958- )., and David Jacobs. Master Builders of the Middle Ages. New York: American Heritage Pub, 1969.

MLA (9th ed.) Citation

Horizon (New York, 1958- )., and David Jacobs. Master Builders of the Middle Ages. American Heritage Pub, 1969.