Way of the wolf
Belfort JordanKniha
Citace v seznamu literatury:
BELFORT, Jordan. Way of the wolf: straight line selling : master the art of persuasion and build massive wealth. New York, NY: North Star Way, 2017. ISBN 9781501164293. Dostupné také z: http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&AN=1979686&authtype=ip,shib&custid=s3936755.