Columbia subject headings:
Rome--History--Period of military anarchy, 235-284--Sources.
Rome--History--Period of military anarchy, 235-284.
Harvard subject headings:
Rome--History--Period of military anarchy, 235-284--Sources.
Princeton subject headings:
Rome--History--Period of military anarchy, 235-284--Sources.
Rome--History--Period of military anarchy, 235-284.