Não informado. (1959). Journal of the Japanese Organization for Research of Periodontology. Japanese Organization for Research of Periodontology.
Chicago-referens (17:e uppl.)Não informado. Journal of the Japanese Organization for Research of Periodontology. Tokyo: Japanese Organization for Research of Periodontology, 1959.
MLA-referens (8:e uppl.)Não informado. Journal of the Japanese Organization for Research of Periodontology. Japanese Organization for Research of Periodontology, 1959.
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