APA (7e ed.) Bronvermelding

Não informado. (2002). Access. American Dental Hygienists Association.

Chicago (17e ed.) Bronvermelding

Não informado. Access. Chicago, Ill: American Dental Hygienists Association, 2002.

MLA (8e ed.) Bronvermelding

Não informado. Access. American Dental Hygienists Association, 2002.

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