APA (7e ed.) Bronvermelding

Não informado. (1977). Journal of the New Zealand Society of Periodontology. New Zealand Society of Periodontology.

Chicago (17e ed.) Bronvermelding

Não informado. Journal of the New Zealand Society of Periodontology. Aulendorf, Alemanha: New Zealand Society of Periodontology, 1977.

MLA (8e ed.) Bronvermelding

Não informado. Journal of the New Zealand Society of Periodontology. New Zealand Society of Periodontology, 1977.

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