Não informado. (1928). American Journal of Public Health and the Nation's Health. American Public Health Association.
Chicago-Zitierstil (17. Ausg.)Não informado. American Journal of Public Health and the Nation's Health. New York: American Public Health Association, 1928.
MLA-Zitierstil (8. Ausg.)Não informado. American Journal of Public Health and the Nation's Health. American Public Health Association, 1928.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.