Não informado. (1970). Smoking and health bulletin. U.S. National Clearinghouse for Smoking and Health.
Chicago Style (17th ed.) CitationNão informado. Smoking and Health Bulletin. Arlington, Va: U.S. National Clearinghouse for Smoking and Health, 1970.
MLA (8th ed.) CitationNão informado. Smoking and Health Bulletin. U.S. National Clearinghouse for Smoking and Health, 1970.
Warning: These citations may not always be 100% accurate.