Katz, A. T., & Rowen, R. H. (1959). Hearing: Gateway to music : a complete foundation for musical understanding. Summy-Birchard.
Lua i Stíl Chicago (17ú heag.)Katz, Adele T., agus Ruth Halle Rowen. Hearing: Gateway to Music : A Complete Foundation for Musical Understanding. Evanston, Ill: Summy-Birchard, 1959.
Lua MLA (9ú heag.)Katz, Adele T., agus Ruth Halle Rowen. Hearing: Gateway to Music : A Complete Foundation for Musical Understanding. Summy-Birchard, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.