Portier. Every Catholic An Apostle. The Catholic University of America Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPortier. Every Catholic An Apostle. The Catholic University of America Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPortier. Every Catholic An Apostle. The Catholic University of America Press.
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