APA
United Nations. Economic and Social Affairs (Department of --), United Nations. Economic and Social Affairs (Department of --), . (1966). World population prospects. : .
Chicago
United Nations. Economic and Social Affairs (Department of --), United Nations. Economic and Social Affairs (Department of --), . 1966. World population prospects. : .
Harvard
United Nations. Economic and Social Affairs (Department of --), United Nations. Economic and Social Affairs (Department of --), . (1966). World population prospects. : .
MLA
United Nations. Economic and Social Affairs (Department of --), United Nations. Economic and Social Affairs (Department of --), . World population prospects. : . 1966.