Não informado. (1953). Academy review of the California Academy of Periodontology. California Academy of Periodontology.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Academy Review of the California Academy of Periodontology. San Francisco, Calif: California Academy of Periodontology, 1953.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Academy Review of the California Academy of Periodontology. California Academy of Periodontology, 1953.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.