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Ageing in the US : the health and retirement study
Willis, Robert J., (2008)
The labor market impacts of the private retirement system : a study prepared for the use of the Subcommittee on Fiscal Policy of the Joint Economic Committee, Congress of the United States
(1973)
Economics of aging : the future of retirement
Morrison, Malcolm H., (1982)
In search of the new old : redefining old age in America, 1945 - 1970
CALHOUN, RICHARD B., (1978)