UN. (1990). World Population Monitoring 1989: Special Report: :The Population Situation In The Least Developed Countries (1. Edisyon.). UN.
Chicago Style (17. basım) AtıfUN. World Population Monitoring 1989: Special Report: :The Population Situation In The Least Developed Countries. 1. Edisyon. New York: UN, 1990.
MLA (9th ed.) AtıfUN. World Population Monitoring 1989: Special Report: :The Population Situation In The Least Developed Countries. 1. Edisyon. UN, 1990.
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