Columbia subject headings:
Berlin (Germany)--Antiquities--Guidebooks.
Havel River Valley (Germany)--Antiquities--Guidebooks.
Spree River Valley (Germany)--Antiquities--Guidebooks.
Harvard subject headings:
Berlin (Germany)--Antiquities--Guidebooks.
Excavations (Archaeology)--Germany--Havel River Region.
Havel River Region (Germany)--Antiquities.
Havel River Region (Germany)--History.
Havel River Valley (Germany)--Antiquities--Guidebooks.
Spree River Valley (Germany)--Antiquities--Guidebooks.
Princeton subject headings:
Excavations (Archaeology)--Germany--Havel River Region.
Havel River Region (Germany)--Antiquities.
Havel River Region (Germany)--History.