Smith, B. L. (1991). The Next steps in Central America. Brookings Institution.
Cita Chicago (17th ed.)Smith, Bruce L.R. The Next Steps in Central America. Washington, D.C: Brookings Institution, 1991.
Cita MLA (9th ed.)Smith, Bruce L.R. The Next Steps in Central America. Brookings Institution, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.