Newby, H. A. (1964). Audiology (2nd ed.). Appleton-Century-Crofts.
Lua i Stíl Chicago (17ú heag.)Newby, Hayes A. Audiology. 2nd ed. New York: Appleton-Century-Crofts, 1964.
Lua MLA (9ú heag.)Newby, Hayes A. Audiology. 2nd ed. Appleton-Century-Crofts, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.