Columbia subject headings:
Egypt--Economic conditions--Congresses.
Egypt--Social conditions--Congresses.
Non-governmental organizations--Egypt--Congresses.
Nonprofit organizations--Egypt--Congresses.
Harvard subject headings:
Egypt--Economic conditions--Congresses.
Egypt--Social conditions--Congresses.
Non-governmental organizations--Egypt--Congresses.
Nonprofit organizations--Egypt--Congresses.
Princeton subject headings:
Egypt--Economic conditions--1952---Congresses.
Egypt--Social conditions--1981---Congresses.
Non-governmental organizations--Egypt--Congresses.
Nonprofit organizations--Egypt--Congresses.