Columbia subject headings:
Cities and towns, Ancient--Turkey.
Excavations (Archaeology)--Turkey.
Seven churches.
Turkey--Antiquities.
Harvard subject headings:
Bible--Inspiration--Criticism, interpretation, etc.
Church history--Primitive and early church, ca. 30-600
Turkey--Antiquities.
Princeton subject headings:
Cities and towns, Ancient--Turkey.
Excavations (Archaeology)--Turkey.
Seven churches.
Turkey--Antiquities.