Bergs, F. J. (1925). Our Queen's treasure: Prayers and devotions for May and October to the Queen of Heaven. Daleiden.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBergs, Frederick J. Our Queen's Treasure: Prayers and Devotions for May and October to the Queen of Heaven. Chicago: Daleiden, 1925.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBergs, Frederick J. Our Queen's Treasure: Prayers and Devotions for May and October to the Queen of Heaven. Daleiden, 1925.
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