Columbia subject headings:
Syria--History--20th century.
Syria--History--21st century.
Syria--Politics and government--2000-
Syria--Politics and government--20th century.
Harvard subject headings:
Syria--Politics and government--2000-
Syria--Politics and government--20th century.
Syria--Social conditions--1971-
Princeton subject headings:
Syria--Politics and government--2000-
Syria--Politics and government--20th century.
Syria--Social conditions--1971-