Columbia subject headings:
Borges, Jorge Luis, 1899-1986--Criticism and interpretation.
Ortega y Gasset, José, 1883-1955--Criticism and interpretation.
Philosophy in literature.
Unamuno, Miguel de, 1864-1936--Criticism and interpretation.
Harvard subject headings:
Borges, Jorge Luis, 1899-1986--Criticism and interpretation.
Ortega y Gasset, José, 1883-1955--Criticism and interpretation.
Philosophy in literature.
Unamuno, Miguel de, 1864-1936--Criticism and interpretation.
Princeton subject headings: