APA (7th ed.) Citation

Gilson, E. H., & Downes, A. H. C. (1940). The spirit of medieval philosophy. Scribner's.

Chicago Style (17th ed.) Citation

Gilson, Etienne Henry, and Alfred Howard Campbell Downes. The Spirit of Medieval Philosophy. New York: Scribner's, 1940.

MLA (9th ed.) Citation

Gilson, Etienne Henry, and Alfred Howard Campbell Downes. The Spirit of Medieval Philosophy. Scribner's, 1940.