Columbia subject headings:
Harvard subject headings:
Authors, Cuban--20th century--Correspondence.
Authors, Spanish--20th century--Correspondence
Chacón y Calvo, José María, 1893-1969--Correspondence.
Spanish letters.
Princeton subject headings:
Authors, Cuban--20th century--Correspondence.
Authors, Spanish--20th century--Correspondence.
Chacón y Calvo, José María, 1893-1969--Correspondence.
Spanish letters.