APA
United Nations. Economic and Social Commission for Asia and The Pacific, . (1990). Economic and social survey of Asia and the Pacific 1989. Bangkok: United Nations.
Chicago
United Nations. Economic and Social Commission for Asia and The Pacific, . 1990. Economic and social survey of Asia and the Pacific 1989. Bangkok: United Nations.
Harvard
United Nations. Economic and Social Commission for Asia and The Pacific, . (1990). Economic and social survey of Asia and the Pacific 1989. Bangkok: United Nations.
MLA
United Nations. Economic and Social Commission for Asia and The Pacific, . Economic and social survey of Asia and the Pacific 1989. Bangkok: United Nations. 1990.