(2019). ITIL foundation: The definite guide for ITIL foundation certification : aligned with ITIL 4 (3rd edition, 2019 updated.). AXELOS Limited.
Chicago-Zitierstil (17. Ausg.)ITIL Foundation: The Definite Guide for ITIL Foundation Certification : Aligned with ITIL 4. 3rd edition, 2019 updated. London: AXELOS Limited, 2019.
MLA-Zitierstil (9. Ausg.)ITIL Foundation: The Definite Guide for ITIL Foundation Certification : Aligned with ITIL 4. 3rd edition, 2019 updated. AXELOS Limited, 2019.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.