Cita APA (7th ed.)

Fernandez Guardia, R. (1978). History of the discovery and conquest of Costa Rica. Gordon Press.

Cita Chicago (17th ed.)

Fernandez Guardia, Ricardo. History of the Discovery and Conquest of Costa Rica. New York: Gordon Press, 1978.

Cita MLA (8th ed.)

Fernandez Guardia, Ricardo. History of the Discovery and Conquest of Costa Rica. Gordon Press, 1978.