Houston, W. J. B., & Tulley, W. J. (1986). A textbook of orthodontics. Wright.
Lua i Stíl Chicago (17ú heag.)Houston, W. J. B., agus W. J. Tulley. A Textbook of Orthodontics. Bristol: Wright, 1986.
Lua MLA (9ú heag.)Houston, W. J. B., agus W. J. Tulley. A Textbook of Orthodontics. Wright, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.