Columbia subject headings:
Arab Spring, 2010---Congresses.
Egypt--History--Protests, 2011-2013--Congresses.
Egypt--Politics and government--21st century--Congresses.
Egypt--Social conditions--21st century--Congresses.
Harvard subject headings:
Arab Spring, 2010---Congresses.
Egypt--History--Protests, 2011---Congresses.
Egypt--Politics and government--21st century--Congresses.
Egypt--Social conditions--21st century--Congresses.
Princeton subject headings: