Cita APA (7a ed.)

Ryan, J. A. (1934). The Catholic Teaching on Our Industrial System. Washington, D.C..

Cita Chicago Style (17a ed.)

Ryan, John A. The Catholic Teaching on Our Industrial System. Washington, D.C., 1934.

Cita MLA (8a ed.)

Ryan, John A. The Catholic Teaching on Our Industrial System. Washington, D.C., 1934.