Παραπομπή σε μορφή APA (7η εκδ.)

Treacy, G. C. (1947). A handbook of Catholic political philosophy: Based on the encyclicals of Leo XIII. Paulist Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Treacy, Gerald C. A Handbook of Catholic Political Philosophy: Based on the Encyclicals of Leo XIII. New York: Paulist Press, 1947.

Παραπομπή σε μορφή MLA (8th εκδ.)

Treacy, Gerald C. A Handbook of Catholic Political Philosophy: Based on the Encyclicals of Leo XIII. Paulist Press, 1947.