Edwards, Iorwerth Eiddon Stephen; Gadd, C. J.; Hammond, Nicholas Geoffrey Lemprière; Seltman, Charles Theodore; Boardman, John; Bury, John Bagnell; Cook, Stanley Arthur; Adcock, Frank Ezra; Charlesworth, M. P.; Walbank, F. W.; Ling, Roger; Astin, A. E. (1977), The Cambridge ancient history, Volume 2, Part 1 (3 ed.), Cambridge University Press, p. 435, ISBN978-0-521-08230-3
