APA-viite (7. p.)
Inglaterra. Office of Government Commerce. (2013). The Official Introduction to the ITIL Service Lifecycle (3a edición.). The Stationery Office.
Chicago-viite (17. p.)
Inglaterra. Office of Government Commerce. The Official Introduction to the ITIL Service Lifecycle. 3a edición. Londres, Inglaterra: The Stationery Office, 2013.
MLA-viite (9. p.)
Inglaterra. Office of Government Commerce. The Official Introduction to the ITIL Service Lifecycle. 3a edición. The Stationery Office, 2013.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.