APA (7th ed.) Citation

Thorndike, L., & Robertus, A. (1949). The Sphere of Sacrobosco and its commentators. University of Chicago Press.

Chicago Style (17th ed.) Citation

Thorndike, Lynn, and Anglicus Robertus. The Sphere of Sacrobosco and Its Commentators. [Chicago]: University of Chicago Press, 1949.

MLA (9th ed.) Citation

Thorndike, Lynn, and Anglicus Robertus. The Sphere of Sacrobosco and Its Commentators. University of Chicago Press, 1949.