Columbia subject headings:
Authors, Spanish--20th century--Correspondence.
Folklorists--Spain--Correspondence.
Machado y Alvarez, Antonio, 1846-1893.
Machado, Antonio, 1875-1939--Correspondence.
Machado, Manuel, 1874-1947--Correspondence.
Harvard subject headings:
Authors, Spanish--20th century--Correspondence
Folklorists--Spain--Correspondence.
Machado y Alvarez, Antonio, 1846-1893
Machado, Antonio, 1875-1939--Correspondence.
Machado, Manuel, 1874-1947--Correspondence.
Princeton subject headings: