Newby, H. A. (1979). Audiology (4th ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Newby, Hayes A. Audiology. 4th ed. Englewood Cliffs, N.J: Prentice-Hall, 1979.
Lua MLA (9ú heag.)Newby, Hayes A. Audiology. 4th ed. Prentice-Hall, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.