Columbia subject headings:
Harvard subject headings:
Gay liberation movement--Germany (West)--History--Congresses.
Gay men--Germany (West)--History--Congresses.
Homosexuality--Germany (West)--History--Congresses.
Male homosexuality--Germany (West)--History--Congresses.
Princeton subject headings:
Gay liberation movement--Germany (West)--History--Congresses.
Gay men--Germany (West)--Social life and customs--Congresses.
Homosexuality--Germany (West)--History--Congresses.
Male homosexuality--Germany (West)--History--Congresses.