Williams, D. (1999). Romans and barbarians: Four views from the empire's edge, 1st century A.D. (1st U.S. ed.). New York: St. Martin's Press.MLA Citation
Williams, Derek. Romans and Barbarians: Four Views From the Empire's Edge, 1st Century A.D. 1st U.S. ed. New York: St. Martin's Press, 1999.