Alcock, Susan E.; Alcock, John H. D'Arms Collegiate Professor of Classical Archaeology and Classics and Arthur F. Thurnau Professor Susan E.; D'Altroy, Terence N.; Morrison, Kathleen D.; Sinopoli, Carla M. (2001). Empires: Perspectives from Archaeology and History (на језику: енглески). Cambridge University Press. стр. 166. ISBN9780521770200.