John XXIII, P. (1965). Encyclicals of Pope John XXIII. National Catholic Welfare Conference.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohn XXIII, Pope. Encyclicals of Pope John XXIII. Washington: National Catholic Welfare Conference, 1965.
एमएलए (8वां संस्करण) प्रशस्ति पत्रJohn XXIII, Pope. Encyclicals of Pope John XXIII. National Catholic Welfare Conference, 1965.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.