Columbia subject headings:
Harvard subject headings:
Diet--Europe--History--Congresses.
Europe--Social life and customs--Congresses.
Food--History--19th century--Congresses.
Food--History--20th century--Congresses.
Implements, utensils, etc.--Europe--History--Congresses.
Nutrition--Europe--History--Congresses.
Technology and civilization--Europe--Congresses.
Princeton subject headings:
Diet--Europe--History--Congresses.
Implements, utensils, etc.--Europe--History--Congresses.
Nutrition--Europe--History--Congresses.
Technology and civilization--Europe--Congresses.