Cooper, G. (1961). Learning to listen: A handbook for music. The University of Chicago.
Lua i Stíl Chicago (17ú heag.)Cooper, Grosvenor. Learning to Listen: A Handbook for Music. Chicago: The University of Chicago, 1961.
Lua MLA (9ú heag.)Cooper, Grosvenor. Learning to Listen: A Handbook for Music. The University of Chicago, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.