Columbia subject headings:
Syria--History--20th century.
Syria--History--Chronology.
Syria--History--Civil War, 2011-
Syria--Politics and government--1971-2000.
Syria--Politics and government--2000-
Harvard subject headings:
Syria--Politics and government.
Princeton subject headings:
Syria--History--20th century.
Syria--History--Chronology.
Syria--History--Civil War, 2011-
Syria--Politics and government--1971-2000.
Syria--Politics and government--2000-