Columbia subject headings:
Harvard subject headings:
Food habits--Economic aspects--Congresses.
Food habits--Moral and ethical aspects--Congresses.
Food habits--Social aspects--Congresses.
Food--Economic aspects--Congresses.
Food--Moral and ethical aspects--Congresses.
Food--Social aspects--Congresses.
Princeton subject headings:
Food habits--Economic aspects--Congresses.
Food habits--Moral and ethical aspects--Congresses.
Food habits--Social aspects--Congresses.
Food--Economic aspects--Congresses.
Food--Moral and ethical aspects--Congresses.
Food--Social aspects--Congresses.