Jacob, C. F. (2017). Mastering Zendesk: Master the art of providing effective IT services to your customers by leveraging Zendesk. Packt Publishing.
Chicago-Zitierstil (17. Ausg.)Jacob, Cedric F. Mastering Zendesk: Master the Art of Providing Effective IT Services to Your Customers by Leveraging Zendesk. Birmingham, UK: Packt Publishing, 2017.
MLA-Zitierstil (9. Ausg.)Jacob, Cedric F. Mastering Zendesk: Master the Art of Providing Effective IT Services to Your Customers by Leveraging Zendesk. Packt Publishing, 2017.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.