Columbia subject headings:
Authors, Mexican--20th century--Correspondence.
Authors, Mexican--Correspondence.
Reyes, Alfonso, 1889-1959--Correspondence.
Silva Herzog, Jesús, 1892-1985--Correspondence.
Harvard subject headings:
Princeton subject headings:
Authors, Mexican--20th century--Correspondence.
Reyes, Alfonso, 1889-1959--Correspondence.
Silva Herzog, Jesús, 1892-1985--Correspondence.