Columbia subject headings:
Ortega y Gasset, José, 1883-1955.
Philosophers--Spain--Biography.
Unamuno, Miguel de, 1864-1936.
Harvard subject headings:
Ortega y Gasset, José, 1883-1955.
Philosophers--Spain--Biography
Unamuno, Miguel de, 1864-1936
Princeton subject headings:
Ortega y Gasset, José, 1883-1955.
Philosophers--Spain--Biography.
Unamuno, Miguel de, 1864-1936.