Dyfyniad APA

Gilson, E., & Downes, A. (1991). The spirit of mediaeval philosophy. University of Notre Dame Press.

Dyfyniad Arddull Chicago

Gilson, Etienne, and A.H.C Downes. The Spirit of Mediaeval Philosophy. Notre Dame, [Indiana]: University of Notre Dame Press, 1991.

Dyfyniad MLA

Gilson, Etienne, and A.H.C Downes. The Spirit of Mediaeval Philosophy. University of Notre Dame Press, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.