GATES, Charles. Ancient cities [elektronický zdroj]. 2nd ed. Abingdon, Oxon ; New York : Routledge, 2011. 1 online zdroj (xxiii, 474 s.). Available on Internet: <http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=359273> ISBN 9780203830574.