POON, Jessie P. H. - RIGBY, David L. International trade : the basics. First published. London ; New York : Routledge, 2017. 1 online zdroj (vi, 197 stran). The basics. Available on Internet: <http://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=1470159&lang=cs&site=eds-live&ebv=EB&ppid=pp_Cover> ISBN 978-1-315-74068-3.