United Nations. Department of International Economic and Social Affairs. (1990). World population monitoring, 1989 : special report: The population situation in the least developed countries. United Nations.
Chicago Style (17th ed.) CitationUnited Nations. Department of International Economic and Social Affairs. World Population Monitoring, 1989 : Special Report: The Population Situation in the Least Developed Countries. New York: United Nations, 1990.
MLA (9th ed.) CitationUnited Nations. Department of International Economic and Social Affairs. World Population Monitoring, 1989 : Special Report: The Population Situation in the Least Developed Countries. United Nations, 1990.
Warning: These citations may not always be 100% accurate.