Columbia subject headings:
Harvard subject headings:
Agriculture--Europe--Folklore--History--Congresses.
Agriculture--Europe--Religious aspects--History--Congresses.
Agriculture--Social aspects--Europe--History--Congresses.
Anthropology--Europe--Congresses.
Europe--Social life and customs.
Fasts and feasts--Europe.
Festivals--Europe--History--Congresses.
Harvest festivals--Europe.
Princeton subject headings:
Europe--Social life and customs.
Fasts and feasts--Europe.
Harvest festivals--Europe.