Cita APA (7a ed.)

(1999). Health United States 1999. Public Health Services.

Cita Chicago Style (17a ed.)

Health United States 1999. Hyattsville, Md.: Public Health Services, 1999.

Cita MLA (8a ed.)

Health United States 1999. Public Health Services, 1999.

Precaución: Estas citas no son 100% exactas.