Columbia subject headings:
Harvard subject headings:
Authors, German--20th century--Correspondence
Müller, Hedwig, 1892?-1971.
Tucholsky, Kurt, 1890-1935--Correspondence.
Princeton subject headings:
Authors, German--20th century--Correspondence.
Müller, Hedwig, 1892?-1971.
Tucholsky, Kurt, 1890-1935--Correspondence.