Columbia subject headings:
Harvard subject headings:
Bricks--Germany--History.
Building materials--Germany--History.
Excavations (Archaeology)--Germany
Germany--Antiquities, Roman--Catalogs.
Germany--Antiquities, Roman.
Rome--Armed Forces--History.
Princeton subject headings:
Bricks--Germany--History.
Building materials--Germany--History.
Catalogs.
Excavations (Archaeology)--Germany.
Germany--Antiquities, Roman--Catalogs.
Germany--Antiquities, Roman.
Rome--Armed Forces--History.