Columbia subject headings:
Portugal--History--To 1385.
Romans--Portugal--History.
Romans--Spain--History.
Rome--Army.
Spain--History--Roman period, 218 B.C.-414 A.D.
Harvard subject headings:
Portugal--History--To 1385.
Romans--Portugal
Romans--Portugal--History.
Romans--Spain
Romans--Spain--History.
Rome--Army.
Spain--History--Roman period, 218 B.C.-414 A.D.
Princeton subject headings:
Portugal--History--To 1385.
Romans--Portugal--History.
Romans--Spain--History.
Rome. Army.
Spain--History--Roman period, 218 B.C.-414 A.D.