Não informado. (1969). American Medical News. American Medical Association.
Chicago-Zitierstil (17. Ausg.)Não informado. American Medical News. Chicago, Ill: American Medical Association, 1969.
MLA-Zitierstil (8. Ausg.)Não informado. American Medical News. American Medical Association, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.