Parker, S. (1991). Singing a song: How you sing, speak, and make sounds. F. Watts.
Lua i Stíl Chicago (17ú heag.)Parker, Steve. Singing a Song: How You Sing, Speak, and Make Sounds. New York: F. Watts, 1991.
Lua MLA (9ú heag.)Parker, Steve. Singing a Song: How You Sing, Speak, and Make Sounds. F. Watts, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.