TY - BOOK AU - Van Eenam,Weltha McLachlan TI - Analysis of recent group annuities supplementing retirement benefits under old-age and survivors insurance T2 - [U.S.] Social Security Administration. Office of the Actuary. Actuarial study, AV - HD7106.U5 A36 no. 25 PY - 1948/// CY - [Washington] PB - Federal Security Agency, Social Security Administration, Office of the Actuary KW - Annuities KW - Group insurance KW - Old age pensions KW - United States N1 - Cover title ER -