Não informado. (2001). American Journal of Public Health: Supplement. American Public Health Association.
Chicago-Zitierstil (17. Ausg.)Não informado. American Journal of Public Health: Supplement. Washington: American Public Health Association, 2001.
MLA-Zitierstil (8. Ausg.)Não informado. American Journal of Public Health: Supplement. American Public Health Association, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.