Hoffer, C. R. (1988). Study guide and scores for A concise introduction to music listening (4th ed.). Wadsworth Pub.
Lua i Stíl Chicago (17ú heag.)Hoffer, Charles R. Study Guide and Scores for A Concise Introduction to Music Listening. 4th ed. Belmont, Calif: Wadsworth Pub, 1988.
Lua MLA (9ú heag.)Hoffer, Charles R. Study Guide and Scores for A Concise Introduction to Music Listening. 4th ed. Wadsworth Pub, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.