Παραπομπή σε μορφή APA (7η εκδ.)

O'Brien, W. J. (1991). The labor of God: An Ignatian view of church and culture. Georgetown University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

O'Brien, Willaim James. The Labor of God: An Ignatian View of Church and Culture. Washington, D.C.: Georgetown University Press, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

O'Brien, Willaim James. The Labor of God: An Ignatian View of Church and Culture. Georgetown University Press, 1991.