APA (7th ed.) Zitazioa
Ottman, R. W. (1996). Music for sight singing (4th edition.). Prentice-Hall.
Chicago Style (17th ed.) Zitazioa
Ottman, Robert W. Music for Sight Singing. 4th edition. Upper Saddle River, N.J.: Prentice-Hall, 1996.
MLA (9th ed.) Zitazioa
Ottman, Robert W. Music for Sight Singing. 4th edition. Prentice-Hall, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.