United States. Bureau of the Census. Population Division & United States. Bureau of the Census. (1980). A compilation of age-specific fertility rates for developing countries. U.S. Dept. of Commerce, Bureau of Census : for sale by the Supt. of Docs., U.S. Govt. Print. Off..
Cita Chicago (17th ed.)United States. Bureau of the Census. Population Division i United States. Bureau of the Census. A Compilation of Age-specific Fertility Rates for Developing Countries. Washington: U.S. Dept. of Commerce, Bureau of Census : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1980.
Cita MLA (8th ed.)United States. Bureau of the Census. Population Division i United States. Bureau of the Census. A Compilation of Age-specific Fertility Rates for Developing Countries. U.S. Dept. of Commerce, Bureau of Census : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1980.