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