APA (7th ed.) Citation

Sister M. Xaveria. (1951). My Music letter book. The Seraphic Press.

Chicago Style (17th ed.) Citation

Sister M. Xaveria. My Music Letter Book. Milwaukee: The Seraphic Press, 1951.

MLA (9th ed.) Citation

Sister M. Xaveria. My Music Letter Book. The Seraphic Press, 1951.