4 books
El Concepto de Organismo Social (Classic Reprint)
Estudio de la Cuestion de Limites Entre Las Republicas del Peru y del Ecuador (Classic Reprint)
Costa Rica-Panama Arbitration. Opinion Concerning the Question of Boundaries Between the Republics of Costa Rica and Panama. Examined with Respect to the Spanish Law and Given at the Request of the Government of Costa Rica by Their Excellencies
A Study of the Question of Boundaries Between the Republics of Peru and Ecuador