APA-referens (7:e uppl.)

Gilson, E. (1940). The spirit of medieval philosophy: (Gifford lectures 1931-1932). Charles scribners.

Chicago-referens (17:e uppl.)

Gilson, Etienne. The Spirit of Medieval Philosophy: (Gifford Lectures 1931-1932). New York: Charles scribners, 1940.

MLA-referens (9:e uppl.)

Gilson, Etienne. The Spirit of Medieval Philosophy: (Gifford Lectures 1931-1932). Charles scribners, 1940.