Não informado. (1953). Academy review of the California Academy of Periodontology. California Academy of Periodontology.
Chicago-referens (17:e uppl.)Não informado. Academy Review of the California Academy of Periodontology. San Francisco, Calif: California Academy of Periodontology, 1953.
MLA-referens (8:e uppl.)Não informado. Academy Review of the California Academy of Periodontology. California Academy of Periodontology, 1953.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.