Columbia subject headings:
Harvard subject headings:
Authors, Spanish--20th century--Biography
Salamanca (Spain)--In literature.
Unamuno, Miguel de, 1864-1936
Unamuno, Miguel de, 1864-1936--Homes and haunts--Spain--Salamanca.
Princeton subject headings:
Salamanca (Spain) in literature.
Unamuno, Miguel de, 1864-1936--Criticism and interpretation.