Columbia subject headings:
Münchhausen, Börries, Freiherr von, 1874-1945--Correspondence.
Schücking, Levin Ludwig, 1878-1964--Correspondence.
Harvard subject headings:
Münchhausen, Börries, Freiherr von, 1874-1945--Correspondence.
Schücking, Levin Ludwig, 1878-1964--Correspondence.
Princeton subject headings:
Münchhausen, Börries, Freiherr von, 1874-1945--Correspondence.
Poets, German--20th century--Correspondence.
Schücking, Levin Ludwig, 1878-1964--Correspondence.