Columbia subject headings:
Authors, Polish--20th century--Correspondence.
Schulz, Bruno, 1892-1942--Correspondence.
Harvard subject headings:
Authors, Polish--20th century--Correspondence.
Schulz, Bruno, 1892-1942--Correspondence.
Princeton subject headings:
Authors, Polish--20th century--Correspondence.
Schulz, Bruno, 1892-1942--Correspondence.