Cita APA (7th ed.)

Holland, S., & Irvin, G. (1989). Central America: The future of economic integration. Westview Press.

Cita Chicago (17th ed.)

Holland, Stuart, i George Irvin. Central America: The Future of Economic Integration. Boulder, Colo: Westview Press, 1989.

Cita MLA (9th ed.)

Holland, Stuart, i George Irvin. Central America: The Future of Economic Integration. Westview Press, 1989.