Gagné, J. W. (2015). Belting: A guide to healthy, powerful singing (Audio & video access edition.). Berklee Press.
Lua i Stíl Chicago (17ú heag.)Gagné, Jeannie Wolff. Belting: A Guide to Healthy, Powerful Singing. Audio & video access edition. Boston, MA: Berklee Press, 2015.
Lua MLA (9ú heag.)Gagné, Jeannie Wolff. Belting: A Guide to Healthy, Powerful Singing. Audio & video access edition. Berklee Press, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.