Employment, income, and retirement problems of the aged / Juanita M. Kreps [et al.] ; edited by Juanita M. Kreps. Kreps, Juanita M. (Juanita Morris) Older people United States. Age and employment United States. Retirement. 331.3980973 EMP Includes index. Durham, N.C. : Duke University Press, 1963, c1962. 1963, c1962. 1963 Text viii, 240p. : eng United States. United States.