APA (7th ed.) Zitazioa
Thompson, C. O., & Nordholm, H. (1949). Keys to teaching elementary school music. Schmitt.
Chicago Style (17th ed.) Zitazioa
Thompson, Carl O., eta Harriet Nordholm. Keys to Teaching Elementary School Music. Minneapolis: Schmitt, 1949.
MLA (9th ed.) Zitazioa
Thompson, Carl O., eta Harriet Nordholm. Keys to Teaching Elementary School Music. Schmitt, 1949.
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