Thomas, D. (1994). How fast is fertility declining in Botswana and Zimbabwe? World Bank.
Chicagoスタイル(17版)引用形式Thomas, Duncan. How Fast Is Fertility Declining in Botswana and Zimbabwe? Washington, D.C: World Bank, 1994.
MLA(9版)引用形式Thomas, Duncan. How Fast Is Fertility Declining in Botswana and Zimbabwe? World Bank, 1994.
警告: この引用は必ずしも正確ではありません.