APA (7e ed.) Bronvermelding

Não informado. (1968). Bulletin of the Michigan Dental Hygienists Association. Michigan Dental Hygienists Association.

Chicago (17e ed.) Bronvermelding

Não informado. Bulletin of the Michigan Dental Hygienists Association. Lansing, Mich: Michigan Dental Hygienists Association, 1968.

MLA (8e ed.) Bronvermelding

Não informado. Bulletin of the Michigan Dental Hygienists Association. Michigan Dental Hygienists Association, 1968.

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