MacMahon, B., Kovar, M. G., & Feldman, J. J. (1972). Infant mortality rates: Socioeconomic factors, United States. U.S. National Center for Health Statistics; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington].
Cita Chicago (17th ed.)MacMahon, Brian, Mary Grace Kovar, i Jacob J. Feldman. Infant Mortality Rates: Socioeconomic Factors, United States. Rockville, Md.: U.S. National Center for Health Statistics; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington], 1972.
Cita MLA (8th ed.)MacMahon, Brian, et al. Infant Mortality Rates: Socioeconomic Factors, United States. U.S. National Center for Health Statistics; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington], 1972.
Atenció: Aquestes cites poden no estar 100% correctes.