Columbia subject headings:
Harvard subject headings:
Authors, German--20th century--Biography
Düsseldorf (Germany)--Description and travel.
Wachenfeld, Sigrid--Biography.
Princeton subject headings:
Authors, German--20th century--Biography.
Düsseldorf (Germany)--Description and travel.
Painters--Germany--Düsseldorf--Biography.
Wachenfeld, Sigrid--Biography.