Columbia subject headings:
Food relief--Congresses.
Food security--Congresses.
Hunger--Congresses.
Hunger--Prevention--Congresses.
Harvard subject headings:
Food relief--Congresses.
Food security--Congresses.
Food supply--Congresses
Hunger--Congresses.
Hunger--Economic aspects--Congresses.
Hunger--Prevention--Congresses.
Nutrition--Congresses
Social problems--Congresses
Princeton subject headings: