Παραπομπή σε μορφή APA (7η εκδ.)

Kreps, J. M. (1971). Lifetime allocation of work and income: Essays in the economics of aging. Duke University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kreps, Juanita Morris. Lifetime Allocation of Work and Income: Essays in the Economics of Aging. Durham, N.C: Duke University Press, 1971.

Παραπομπή σε μορφή MLA (9th εκδ.)

Kreps, Juanita Morris. Lifetime Allocation of Work and Income: Essays in the Economics of Aging. Duke University Press, 1971.