Columbia subject headings:
Bergama (Turkey)--Antiquities.
City walls--Turkey--Bergama--History.
Excavations (Archaeology)--Turkey--Bergama.
Fortification--Turkey--Bergama--History.
Harvard subject headings:
Bergama (Turkey)--Antiquities.
City walls--Turkey--Bergama--History.
Excavations (Archaeology)--Turkey--Bergama.
Fortification--Turkey--Bergama--History.
Princeton subject headings:
Bergama (Turkey)--Antiquities.
Bergama (Turkey)--Buildings, structures, etc.
City walls--Turkey--Bergama--History.
Excavations (Archaeology)--Turkey--Bergama.
Fortification--Turkey--Bergama--History.