Lenski, N. E. (2002). Failure of empire: Valens and the Roman state in the fourth century A.D. University of California Press.
Chicago-referens (17:e uppl.)Lenski, Noel Emmanuel. Failure of Empire: Valens and the Roman State in the Fourth Century A.D. Berkeley: University of California Press, 2002.
MLA-referens (9:e uppl.)Lenski, Noel Emmanuel. Failure of Empire: Valens and the Roman State in the Fourth Century A.D. University of California Press, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.