MAP20070003145 Social security programs throughout the world : 1979. — Washington D.C. : U.S. Department of Health and Human Services, [1980?] 269 p. ; 31 cm . — (Research report ; 54) 1. Seguridad Social . 2. Estados Unidos . I. Estados Unidos. Department of Health and Human Services . II. Research report ; 54 . III. Title. FUNDACIÓN MAPFRE. Centro de DocumentaciónFUNDACIÓN MAPFRE. Centro de Documentación — Signature: D017 - 049 — Record number: 003483 Loan: Available