Columbia subject headings:
Economic history--To 500--Congresses.
Military art and science--Mediterranean Region--History--Congresses.
Violence--Mediterranean Region--History--Congresses.
Harvard subject headings:
Economic history--To 500--Congresses.
Military art and science--Mediterranean Region--History--Congresses.
Violence--Mediterranean Region--History--Congresses.
Princeton subject headings:
Economic history--To 500--Congresses.
Military art and science--Mediterranean Region--History--Congresses.
Violence--Mediterranean Region--History--Congresses.