Kreps, J. M. (1971). Lifetime allocation of work and income: Essays in the economics of aging. Duke University Press.
Lua i Stíl Chicago (17ú heag.)Kreps, Juanita Morris. Lifetime Allocation of Work and Income: Essays in the Economics of Aging. Durham, N.C: Duke University Press, 1971.
Lua MLA (9ú heag.)Kreps, Juanita Morris. Lifetime Allocation of Work and Income: Essays in the Economics of Aging. Duke University Press, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.