Não informado. (1973). Dental Hygiene. American Dental Hygienists Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Dental Hygiene. Thorofare, NJ: American Dental Hygienists Association, 1973.
Lua MLA (8ú heag.)Não informado. Dental Hygiene. American Dental Hygienists Association, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.