(2004). Health Care in America: Trends in Utilization. Public Health Services.
Chicago-Zitierstil (17. Ausg.)Health Care in America: Trends in Utilization. Hyattsville, Md.: Public Health Services, 2004.
MLA-Zitierstil (8. Ausg.)Health Care in America: Trends in Utilization. Public Health Services, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.