Παραπομπή σε μορφή APA (7η εκδ.)

Ryan, J. A. (1934). The Catholic teaching on our industrial system (2d ed.). National Council of Catholic Men.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ryan, John A. The Catholic Teaching on Our Industrial System. 2d ed. Washington: National Council of Catholic Men, 1934.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ryan, John A. The Catholic Teaching on Our Industrial System. 2d ed. National Council of Catholic Men, 1934.