Columbia subject headings:
Rome--History--Empire, 30 B.C.-476 A.D.--Congresses.
Harvard subject headings:
Civil engineering--Rome--Congresses.
Infrastructure (Economics)--Rome--Congresses.
Public works--Rome--Congresses.
Roman provinces--Administration--Congresses.
Rome--History--Empire, 30 B.C.-476 A.D.--Congresses.
Rome--Politics and government--30 B.C.-476 A.D.--Congresses.
Women--Political activity--Rome--Congresses.
Women--Rome--History--To 500--Congresses.
Princeton subject headings:
Rome--History--Empire, 30 B.C.-476 A.D.--Congresses.