Não informado. (1976). The Journal of the Western Society of Periodontology. Western Society of Periodontology.
Lua i Stíl Chicago (17ú heag.)Não informado. The Journal of the Western Society of Periodontology. Los Angeles, Calif: Western Society of Periodontology, 1976.
Lua MLA (8ú heag.)Não informado. The Journal of the Western Society of Periodontology. Western Society of Periodontology, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.