Schulz, J. H. (1991). The world ageing situation, 1991. United Nations.
Chicago Style (17th ed.) CitationSchulz, James H. The World Ageing Situation, 1991. New York: United Nations, 1991.
MLA (9th ed.) CitationSchulz, James H. The World Ageing Situation, 1991. United Nations, 1991.
Warning: These citations may not always be 100% accurate.