Columbia subject headings:
Beer--History--Congresses.
Conference papers and proceedings.
Drinking customs--Congresses.
Drinking of alcoholic beverages--Social aspects--Congresses.
Harvard subject headings:
Bars (Drinking establishments)--Germany--History--Congresses.
Drinking customs--Germany--History--Congresses.
Drinking of alcoholic beverages--Germany--History--Congresses.
Princeton subject headings: