International Demographic Data Center. (1980). International population dynamics, 1950-79: Demographic estimates for countries with a population of 5 million or more. s.n.
Chicagoスタイル(17版)引用形式International Demographic Data Center. International Population Dynamics, 1950-79: Demographic Estimates for Countries with a Population of 5 Million or More. Washington, D.C: s.n, 1980.
MLA(9版)引用形式International Demographic Data Center. International Population Dynamics, 1950-79: Demographic Estimates for Countries with a Population of 5 Million or More. s.n, 1980.
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