Columbia subject headings:
Algerians--Syria--History--19th century.
Algerians--Syria--History--20th century.
Harvard subject headings:
Algerians--Syria--History--19th century.
Algerians--Syria--History--20th century.
Princeton subject headings:
Algerians--Syria--History--19th century.
Algerians--Syria--History--20th century.