Catholic Church. Pope (1978-2005 : John Paul II), John Paul II, P., & Donders, J. G. (1996). The encyclicals in everyday language. Orbis Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCatholic Church. Pope (1978-2005 : John Paul II), Pope John Paul II, और Joseph G. Donders. The Encyclicals in Everyday Language. Maryknoll, N.Y.: Orbis Books, 1996.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCatholic Church. Pope (1978-2005 : John Paul II), et al. The Encyclicals in Everyday Language. Orbis Books, 1996.
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