Halal, W. E., & Taylor, K. B. (1999). Twenty-first century economics: Perspectives of socioeconomics for a changing world. St. Martin's Press.
Chicago Style (17. basım) AtıfHalal, William E., ve Kenneth B. Taylor. Twenty-first Century Economics: Perspectives of Socioeconomics for a Changing World. New York: St. Martin's Press, 1999.
MLA (9th ed.) AtıfHalal, William E., ve Kenneth B. Taylor. Twenty-first Century Economics: Perspectives of Socioeconomics for a Changing World. St. Martin's Press, 1999.
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