Facts for fiscal year 1971
368.40973 / E582f 1971
E.U.A. Department of Health, Education and Welfare Social Security Administration
Facts for fiscal year 1971 / SSA. -- Washington: SSA. Office of Administration, 1972. 8 p. : il., gráficas; 27 cm. (OA AP-8)
Seguridad social--Estados Unidos--1971--Estadística