Columbia subject headings:
Cernuda, Luis--Correspondence.
Guillén, Jorge, 1893-1984--Correspondence.
Poets, Spanish--Correspondence.
Prados, Emilio, 1899-1962--Correspondence.
Harvard subject headings:
Cernuda, Luis--Correspondence.
Guillén, Jorge, 1893-1984--Correspondence.
Poets, Spanish--Correspondence.
Prados, Emilio, 1899-1962--Correspondence.
Princeton subject headings:
Cernuda, Luis--Correspondence.
Guillén, Jorge, 1893-1984. Correspondence.
Poets, Spanish--Correspondence.
Prados, Emilio, 1899-1962--Correspondence.