Cruz-Saco, M. A., & Mesa-Lago, C. (1999). Do Options Exist ?: The Reform of Pension and Health Care Systems in Latin America. University of Pittsburgh Press.
Tohutoru Kātū Chicago (17th ed.)Cruz-Saco, Maria Amparo, me Carmelo Mesa-Lago. Do Options Exist ?: The Reform of Pension and Health Care Systems in Latin America. Pittsburgh: University of Pittsburgh Press, 1999.
Tohutoro MLA (9th ed.)Cruz-Saco, Maria Amparo, me Carmelo Mesa-Lago. Do Options Exist ?: The Reform of Pension and Health Care Systems in Latin America. University of Pittsburgh Press, 1999.
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