Columbia subject headings:
Authors, Spanish--20th century--Correspondence.
Cossío, José María de, 1893---Correspondence.
Hernández, Miguel, 1910-1942--Correspondence--Facsimiles.
Harvard subject headings:
Princeton subject headings:
Authors, Spanish--20th century--Correspondence.
Cossío, José María de, 1893-
Hernández, Miguel, 1910-1942--Correspondence.