Não informado. Periodontology Today. Southwest Society of Periodontists.
Lua i Stíl Chicago (17ú heag.)Não informado. Periodontology Today. San Antonio, Tex: Southwest Society of Periodontists.
Lua MLA (8ú heag.)Não informado. Periodontology Today. Southwest Society of Periodontists.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.