Columbia subject headings:
Architecture--Syria--History.
Syria--Antiquities.
Harvard subject headings:
Architecture--Syria--Guidebooks.
Church architecture--Syria--History--Guidebooks.
Syria--Antiquities--Guidebooks.
Syria--History--333 B.C.-634 A.D.
Princeton subject headings:
Architecture--Syria--Guidebooks.
Guidebooks.
Syria--Antiquities--Guidebooks.