Columbia subject headings:
Harvard subject headings:
Authors, French--20th century--Correspondence
Authors, Spanish--20th century--Correspondence
Cassou, Jean, 1897-1986--Correspondence.
Guillén, Jorge, 1893-1984. Correspondence.
Princeton subject headings:
Authors, French--20th century--Correspondence.
Authors, Spanish--20th century--Correspondence.
Cassou, Jean, 1897-1986--Correspondence.
Guillén, Jorge, 1893-1984. Correspondence.