Não informado. (1969). Journal of Periodontology-Periodontics. American Academy of Periodontology.
Chicagoスタイル(17版)引用形式Não informado. Journal of Periodontology-Periodontics. Chicago, Ill: American Academy of Periodontology, 1969.
MLA(8版)引用形式Não informado. Journal of Periodontology-Periodontics. American Academy of Periodontology, 1969.
警告: この引用は必ずしも正確ではありません.