Hoffer, C. R. (1999). Music listening today. Wadsworth.
Lua i Stíl Chicago (17ú heag.)Hoffer, Charles R. Music Listening Today. Belmont, CA: Wadsworth, 1999.
Lua MLA (9ú heag.)Hoffer, Charles R. Music Listening Today. Wadsworth, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.