Cita APA (7th ed.)

AXELOS Limited. (2021). ITIL® 4: Reference and study guide. TSO (The Stationery Office), part of Williams Lea.

Cita Chicago (17th ed.)

AXELOS Limited. ITIL® 4: Reference and Study Guide. Norwich, United Kingdom: TSO (The Stationery Office), part of Williams Lea, 2021.

Cita MLA (9th ed.)

AXELOS Limited. ITIL® 4: Reference and Study Guide. TSO (The Stationery Office), part of Williams Lea, 2021.