Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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