John Bagnell Bury; Stanley Arthur Cook; Frank E. Adcock; Martin Percival Charlesworth; John Boardman; N. G. L. Hammond; A. E. Astin; Iorwerth Eiddon Stephen Edwards; Michael Whitby; D. M. Lewis; Andrew Lintott; Cyril John Gadd; F. W. Walbank; J. A. Crook; Alan K. Bowman; Edward Champlin; Elizabeth Rawson; Averil Cameron; Andrew William Lintott; Peter Garnsey; Bryan Ward-Perkins (1928). The Cambridge Ancient History. Cambridge University Press. p. 368. ISBN9780521233484.