Columbia subject headings:
Egypt--History--Protests, 2011-2013.
Egypt--Politics and government--21st century.
Revolutions--Egypt--History--21st century.
Harvard subject headings:
Egypt--History--Protests, 2011-
Egypt--Politics and government--21st century.
Revolutions--Egypt--History--21st century.
Princeton subject headings:
Egypt--History--Protests, 2011-.
Egypt--Politics and government--21st century.
Revolutions--Egypt--History--21st century.