15. THE PROVINCES
Arnold, W.—The Roman system of provincial administration to the accession of Constantine the Great. London, 1879.
Marquardt, J.—Römische Staatsverwaltung, Bd. I. Leipzig, 1881.
Mommsen, Th.—The provinces of the Roman Empire from Caesar to Diocletian. Translated by William P. Dickson. London, 1886.