Leo XIII, P. (1903). The truth. Rights of capital and labor. Famous letter of Pope Leo XIII. Chicago.
Čikaški stil citiranja (17. izdanje)Leo XIII, Pope. The Truth. Rights of Capital and Labor. Famous Letter of Pope Leo XIII. Chicago, 1903.
MLA način citiranja (8. izdanje)Leo XIII, Pope. The Truth. Rights of Capital and Labor. Famous Letter of Pope Leo XIII. Chicago, 1903.
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