Agutter, C., & Villa, K. (2021). ITIL 4 create, deliver and support (CDS): Your companion to the ITIL 4 Managing Professional CDS certification ([First edition].). ITGP.
Chicago-Zitierstil (17. Ausg.)Agutter, Claire, und Katie Villa. ITIL 4 Create, Deliver and Support (CDS): Your Companion to the ITIL 4 Managing Professional CDS Certification. [First edition]. [Ely]: ITGP, 2021.
MLA-Zitierstil (9. Ausg.)Agutter, Claire, und Katie Villa. ITIL 4 Create, Deliver and Support (CDS): Your Companion to the ITIL 4 Managing Professional CDS Certification. [First edition]. ITGP, 2021.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.