(1987). La Penca: On Trial in Costa Rica. Editorial Porvenir.
Cita Chicago (17th ed.)La Penca: On Trial in Costa Rica. San José, Costa Rica: Editorial Porvenir, 1987.
Cita MLA (9th ed.)La Penca: On Trial in Costa Rica. Editorial Porvenir, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.