Columbia subject headings:
Kahler, Erich, 1885-1970--Correspondence.
Mann, Thomas, 1875-1955--Correspondence.
Harvard subject headings:
Kahler, Erich, 1885-1970--Correspondence.
Mann, Thomas, 1875-1955--Correspondence.
Princeton subject headings:
Kahler, Erich, 1885-1970--Correspondence.
Mann, Thomas, 1875-1955--Correspondence.