Columbia subject headings:
Harvard subject headings:
Gaos, José, 1900-1969.
Ortega y Gasset, José, 1883-1955.
Princeton subject headings:
Gaos, José, 1900-1969.
Latin America--History--Philosophy.
Ortega y Gasset, José, 1883-1955--Influence.
Philosophy--Latin America--History--20th century.