APA (7th ed.) Zitazioa
National Bureau of Economic Research, ebrary, Inc, & Wise, D. A. (1989). The economics of aging. University of Chicago Press.
Chicago Style (17th ed.) Zitazioa
National Bureau of Economic Research, Inc ebrary, eta David A. Wise. The Economics of Aging. Chicago: University of Chicago Press, 1989.
MLA (9th ed.) Zitazioa
National Bureau of Economic Research, et al. The Economics of Aging. University of Chicago Press, 1989.
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