Cita APA (7th ed.)

Zierer, O., & Díaz-Plaja, F. (1977). History of Spain. Leon Amiel Publisher.

Cita Chicago (17th ed.)

Zierer, Otto, i Fernando Díaz-Plaja. History of Spain. Nueva York, Estados Unidos: Leon Amiel Publisher, 1977.

Cita MLA (9th ed.)

Zierer, Otto, i Fernando Díaz-Plaja. History of Spain. Leon Amiel Publisher, 1977.