APA (7 वां संस्करण) प्रशस्ति पत्र
Johnston, W. H. (2013). Care for the church and its liturgy: A study of Summorum Pontificum and the extraordinary form of the Roman Rite. Liturgical Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Johnston, William H. Care for the Church and Its Liturgy: A Study of Summorum Pontificum and the Extraordinary Form of the Roman Rite. Collegeville, Minnesota: Liturgical Press, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Johnston, William H. Care for the Church and Its Liturgy: A Study of Summorum Pontificum and the Extraordinary Form of the Roman Rite. Liturgical Press, 2013.
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