ebrary, Inc, National Bureau of Economic Research Conference on the Economics of Aging, & Wise, D. A. (1990). Issues in the economics of aging. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)ebrary, Inc, National Bureau of Economic Research Conference on the Economics of Aging, agus David A. Wise. Issues in the Economics of Aging. Chicago: University of Chicago Press, 1990.
Lua MLA (9ú heag.)ebrary, Inc, et al. Issues in the Economics of Aging. University of Chicago Press, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.