Columbia subject headings:
Apollinaire, Guillaume, 1880-1918--Correspondence.
Apollinaire, Guillaume, 1880-1918--Knowledge and learning.
Art.
Artists--France--Correspondence.
Poets, French--20th century--Correspondence.
Harvard subject headings:
Apollinaire, Guillaume, 1880-1918. Correspondence
Artists--Correspondence.
Poets, French--20th century--Correspondence
Princeton subject headings:
Apollinaire, Guillaume, 1880-1918. Correspondence.
Artists--Correspondence.
Poets, French--20th century--Correspondence.