Catholic Church. Pope (1903-1914 : Pius X) & McNaspy, C. J. (1950). The motu proprio of church music of Pope Pius X: A new translation and commentary. Gregorian Institute of America.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCatholic Church. Pope (1903-1914 : Pius X) और C. J. McNaspy. The Motu Proprio of Church Music of Pope Pius X: A New Translation and Commentary. Toledo: Gregorian Institute of America, 1950.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCatholic Church. Pope (1903-1914 : Pius X) और C. J. McNaspy. The Motu Proprio of Church Music of Pope Pius X: A New Translation and Commentary. Gregorian Institute of America, 1950.
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