Spencer, P. (1996). Music theory for non-music majors. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Spencer, Peter. Music Theory for Non-music Majors. Englewood Cliffs, N.J: Prentice Hall, 1996.
Lua MLA (9ú heag.)Spencer, Peter. Music Theory for Non-music Majors. Prentice Hall, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.