(1992). American almanac: December. U.S. Bureau of the Census.
Cita Chicago Style (17a ed.)American Almanac: December. USA: U.S. Bureau of the Census, 1992.
Cita MLA (8a ed.)American Almanac: December. U.S. Bureau of the Census, 1992.
Precaución: Estas citas no son 100% exactas.