Leo XIII, P. (1903). The truth. Rights of capital and labor. Famous letter of Pope Leo XIII. Chicago.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLeo XIII, Pope. The Truth. Rights of Capital and Labor. Famous Letter of Pope Leo XIII. Chicago, 1903.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLeo XIII, Pope. The Truth. Rights of Capital and Labor. Famous Letter of Pope Leo XIII. Chicago, 1903.
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