APA (7e ed.) Bronvermelding

Não informado. (1967). Parodontologie and academy review. California Academy of Periodontology.

Chicago (17e ed.) Bronvermelding

Não informado. Parodontologie and Academy Review. Zurich, Suíça: California Academy of Periodontology, 1967.

MLA (8e ed.) Bronvermelding

Não informado. Parodontologie and Academy Review. California Academy of Periodontology, 1967.

Let op: Deze citaties zijn niet altijd 100% accuraat.