Ryan, J. A. (1934). The Catholic Teaching on Our Industrial System. Washington, D.C..
Chicagoスタイル(17版)引用形式Ryan, John A. The Catholic Teaching on Our Industrial System. Washington, D.C., 1934.
MLA(8版)引用形式Ryan, John A. The Catholic Teaching on Our Industrial System. Washington, D.C., 1934.
警告: この引用は必ずしも正確ではありません.