Columbia subject headings:
Harvard subject headings:
Gay liberation movement--Switzerland--Basel--History--20th century.
Gay men--Switzerland--Basel--History--20th century.
Homosexuality--Switzerland--Basel--Societies, etc.--History--20th century.
SchLeZ (Basel, Switzerland)--History.
Princeton subject headings:
Gay liberation movement--Switzerland--Basel--History--20th century.
Gay men--Switzerland--Basel--History--20th century.
Homosexuality--Switzerland--Basel--Societies, etc.--History--20th century.
SchLeZ (Basel, Switzerland)--History.