Não informado. (1963). Vital and health statistics. National Center for Health Statistics.
Cita Chicago Style (17a ed.)Não informado. Vital and Health Statistics. Washington: National Center for Health Statistics, 1963.
Cita MLA (8a ed.)Não informado. Vital and Health Statistics. National Center for Health Statistics, 1963.
Precaución: Estas citas no son 100% exactas.