(1989). Global estimates and projections of population by sex and age: The 1988 revision. New York: United Nations.
Chicago Style CitationGlobal Estimates and Projections of Population By Sex and Age: The 1988 Revision. New York: United Nations, 1989.
MLA CitationGlobal Estimates and Projections of Population By Sex and Age: The 1988 Revision. New York: United Nations, 1989.
Warning: These citations may not always be 100% accurate.