Columbia subject headings:
Harvard subject headings:
Germany--History--1918-1933.
Leyden, W. von (Wolfgang von), 1911---Homes and haunts--Germany.
Leyden, W. von (Wolfgang), 1911-2004--Homes and haunts.
Philosophers--England--Biography
Princeton subject headings:
Germany--History--1918-1933.
Leyden, W. von (Wolfgang von), 1911-2004--Homes and haunts--Germany.
Philosophers--England--Biography.