Columbia subject headings:
Harvard subject headings:
Authors, Mexican--20th century--Correspondence
Novo, Salvador, 1904-1974.
Villaurrutia, Xavier, 1903-1950--Correspondence.
Princeton subject headings:
Authors, Mexican--20th century--Correspondence.
Novo, Salvador, 1904-1974--Correspondence.
Villaurrutia, Xavier, 1903-1950--Correspondence.