Columbia subject headings:
Rome--History--Civil War, 43-31 B.C.--Early works to 1800.
Harvard subject headings:
Rome--History--Civil War, 43 B.C.-31 B.C.
Rome--History--Civil War, 43-31 B.C.
Rome--History--Civil War, 49 B.C.-45 B.C.
Rome--History--Civil War, 49-45 B.C.
Princeton subject headings:
Rome--History--Civil War, 43-31 B.C.
Rome--History--Civil War, 49-45 B.C.