Columbia subject headings:
Harvard subject headings:
Excavations (Archaeology)--Spain
Military camps--Spain.
Polybius. Historiae. Book 6.
Romans--Spain
Rome--History--Republic, 265 B.C.-30 B.C.
Schulten, Adolf, 1870-1960.
Spain--Antiquities, Roman.
Princeton subject headings:
Military camps--Spain--Design and construction--History.
Rome--History--Republic, 265-30 B.C.
Rome--Military antiquities.
Spain--Antiquities, Roman.