Sister M. Xaveria. (1951). My Music letter book. The Seraphic Press.
Chicago Style (17th ed.) ZitazioaSister M. Xaveria. My Music Letter Book. Milwaukee: The Seraphic Press, 1951.
MLA (9th ed.) ZitazioaSister M. Xaveria. My Music Letter Book. The Seraphic Press, 1951.
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