Columbia subject headings:
Authors, German--20th century--Biography.
Gay authors--Germany--Biography.
Vogel, Bruno, 1898-1987.
Harvard subject headings:
Authors, German--20th century--Biography
Pacifists--Germany--Biography
Vogel, Bruno, 1898-1987.
Princeton subject headings:
Authors, German--20th century--Biography.
Gay authors--Germany--Biography.
Vogel, Bruno, 1898-1987.