Não informado. Periodontology Today. Southwest Society of Periodontists.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Periodontology Today. San Antonio, Tex: Southwest Society of Periodontists.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Periodontology Today. Southwest Society of Periodontists.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.