TY - BOOK ED - E.U.A. Department of Health and Human Services. Social Security Administration TI - Understanding social security U1 - 368.40973 21 PY - 1991/// CY - Baltimore PB - Government Printing Office KW - Seguridad social KW - EUA KW - 1991 N1 - 1 Social Security's Future And Yours! . 2 What You Need To Know About Social Security While You're Still Working. 3 What You Need To Know When You Become Eligible For Social Security. 4 What You Need To Know After You Sign Up For Social Security ER -