APA (7e ed.) Bronvermelding

Não informado. (1970). Smoking and health bulletin. U.S. National Clearinghouse for Smoking and Health.

Chicago (17e ed.) Bronvermelding

Não informado. Smoking and Health Bulletin. Arlington, Va: U.S. National Clearinghouse for Smoking and Health, 1970.

MLA (8e ed.) Bronvermelding

Não informado. Smoking and Health Bulletin. U.S. National Clearinghouse for Smoking and Health, 1970.

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