MCGEE, Paul. How to speak so people really listen : the straight-talking guide to communicating with influence and impact. First published. Chichester, West Sussex, England : Capstone, 2017. 1 online zdroj (142 stran). Dostupné na internetu: <http://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=1367892&lang=cs&site=eds-live&ebv=EB&ppid=pp_C1> ISBN 978-0-857-08722-5.