Gannon, T. M. (1987). The Catholic challenge to the American economy: Reflections on the U.S. bishops' pastoral letter on Catholic social teaching and the U.S. economy. Macmillan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGannon, Thomas M. The Catholic Challenge to the American Economy: Reflections on the U.S. Bishops' Pastoral Letter on Catholic Social Teaching and the U.S. Economy. New York: Macmillan, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGannon, Thomas M. The Catholic Challenge to the American Economy: Reflections on the U.S. Bishops' Pastoral Letter on Catholic Social Teaching and the U.S. Economy. Macmillan, 1987.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.