000			00636nam a2200205Ia 4500
008			140128s9999 xx 000 0 und d
040			_besp Biblioteca CIESS
041			_aing
082			_a371.17973 .E582se
100			_aE.U.A. Railroad Retirement Board
245			_aSeventh actuarial valuation of the assets and liabilities under the Railroad R-
260			_aChicago
260			_bOffice of Director of Research
260			_c1959
300			_a98 p., 27 cm.
500			_a007334
650			_aFerrocarriles - Salarios, pensiones - E. U. A.
650			_aNiessen, A. M.
650			_aSeguridad social - Finanzas - E U A
999			_c4740 _d4740