Columbia subject headings:
Bölsche, Wilhelm, 1861-1939--Criticism and interpretation.
Bölsche, Wilhelm, 1861-1939.
Naturalism in literature.
Naturalists--Germany--Berlin.
Harvard subject headings:
Authors, German--Biography
Bölsche, Wilhelm, 1861-1939.
Naturalists--Germany--Biography.
Princeton subject headings:
Authors, German--19th century--Biography.
Authors, German--20th century--Biography.
Bölsche, Wilhelm, 1861-1939.
Naturalism in literature.
Naturalism--History.