Columbia subject headings:
Harvard subject headings:
Environmental degradation--Egypt--Congresses.
Poverty--Egypt--Congresses.
Rural poor--Egypt--Congresses.
Sustainable development--Egypt--Congresses.
Princeton subject headings:
Environmental degradation--Egypt--Congresses.
Poverty--Egypt--Congresses.
Rural poor--Egypt--Congresses.
Sustainable development--Egypt--Congresses.