APA-referens (7:e uppl.)
Wirtz, J. (2016). Services marketing: People, technology, strategy (8th ed.). World Scientific.
Chicago-referens (17:e uppl.)
Wirtz, Jochen. Services Marketing: People, Technology, Strategy. 8th ed. New Jersey: World Scientific, 2016.
MLA-referens (9:e uppl.)
Wirtz, Jochen. Services Marketing: People, Technology, Strategy. 8th ed. World Scientific, 2016.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.