Catholic Church. Pope. (1969). The five great social encyclicals. St. Paul Pub.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCatholic Church. Pope. The Five Great Social Encyclicals. Pasay City: St. Paul Pub, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCatholic Church. Pope. The Five Great Social Encyclicals. St. Paul Pub, 1969.
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