APA-viite (7. p.)

Gruen, F. B., & Oisy, E. d. (1930). Catechism of the Third Order (15th ed.). Franciscan Herald Press.

Chicago-viite (17. p.)

Gruen, Ferdinand Bernard, ja Eugène d' Oisy. Catechism of the Third Order. 15th ed. Chicago, Ill.: Franciscan Herald Press, 1930.

MLA-viite (8. p.)

Gruen, Ferdinand Bernard, ja Eugène d' Oisy. Catechism of the Third Order. 15th ed. Franciscan Herald Press, 1930.