Mommsen, Th., Römisches Staatsrecht. 3 vols. Leipzig, 1887.
Willems, P., Le Droit Public Romain. Louvain, 1888.6
Willems, P., Le Sénat de la République Romaine. 3 vols. Louvain, 1883.
Willoughby, W. W., The Political Theories of the Ancient World. New York, 1903.
IV. Social and Economic Life
Abbott, F. F., Society and Politics in Ancient Rome. New York, 1909.
Abbott, F. F., The Common People of Ancient Rome. New York, 1911.
Bouchier, E. S., Life and Letters in Roman Africa. Oxford, 1913.
Bouchier, E. S., Spain under the Roman Empire. Oxford, 1914.
Bouchier, E. S., Syria as a Roman Province. Oxford, 1916.