Columbia subject headings:
Authors, Argentine--20th century--Correspondence.
Buenos Aires (Argentina)--Intellectual life--20th century.
Lugones, Leopoldo, 1874-1938--Correspondence.
Martínez Estrada, Ezequiel, 1895-1964--Correspondence.
Quiroga, Horacio, 1878-1937--Correspondence.
Harvard subject headings:
Authors, Argentine--20th century--Correspondence
Buenos Aires (Argentina)--Intellectual life--20th century.
Lugones, Leopoldo, 1874-1938--Correspondence.
Martínez Estrada, Ezequiel, 1895-1964--Correspondence.
Quiroga, Horacio, 1878-1937--Correspondence.
Princeton subject headings:
Authors, Argentine--20th century--Correspondence.
Espinoza, Enrique, 1898-1987--Correspondence.
Franco, Luis, 1898-1988--Correspondence.
Lugones, Leopoldo, 1874-1938--Correspondence.
Martínez Estrada, Ezequiel, 1895-1964--Correspondence.
Quiroga, Horacio, 1878-1937--Correspondence.