Não informado. (1976). World smoking and health: An American Cancer Society journal. American Cancer Society.
Chicago-referens (17:e uppl.)Não informado. World Smoking and Health: An American Cancer Society Journal. Atlanta, Ga: American Cancer Society, 1976.
MLA-referens (8:e uppl.)Não informado. World Smoking and Health: An American Cancer Society Journal. American Cancer Society, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.