Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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