Schlag. Handbook of Catholic Social Thought. The Catholic University of America Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchlag. Handbook of Catholic Social Thought. The Catholic University of America Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSchlag. Handbook of Catholic Social Thought. The Catholic University of America Press.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.