Columbia subject headings:
Harvard subject headings:
Gay liberation movement--Germany--History--19th century.
Gay men--Germany.
Homosexuality
Homosexuality--Germany.
Ulrichs, Karl Heinrich, 1825-1895
Princeton subject headings:
Gay liberation movement--Germany--History--19th century.
Gay men--Germany.
Homosexuality--Germany.
Homosexuality.
Ulrichs, Karl Heinrich, 1825-1895.