APA (7th ed.) Zitazioa
Sur, W. R. (1967). This is music book 6. Allyn and Bacon.
Chicago Style (17th ed.) Zitazioa
Sur, William R. This Is Music Book 6. Boston: Allyn and Bacon, 1967.
MLA (9th ed.) Zitazioa
Sur, William R. This Is Music Book 6. Allyn and Bacon, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.