Houston, W. (1982). Orthodontic diagnosis. Wright.
Lua i Stíl Chicago (17ú heag.)Houston, W.J.B. Orthodontic Diagnosis. Bristol: Wright, 1982.
Lua MLA (9ú heag.)Houston, W.J.B. Orthodontic Diagnosis. Wright, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.