Columbia subject headings:
Music-halls (Variety-theaters, cabarets, etc.)--Germany--Cologne--History--20th century.
Musical theater--Germany--Cologne--History--20th century.
National socialism and theater--Germany--Cologne.
Harvard subject headings:
Music-halls (Variety-theaters, cabarets, etc.)--Germany--Cologne--History--20th century.
Musical theater--Germany--Cologne--History--20th century.
National socialism and theater--Germany--Cologne.
Princeton subject headings:
Music-halls (Variety-theaters, cabarets, etc.)--Germany--Cologne--History--20th century.
Musical theater--Germany--Cologne--History--20th century.
National socialism and theater--Germany--Cologne.