Brewster, E. (2016). IT service management: Support for your ITSM foundation exam (Third edition.). BCS, the Chartered Institute for IT.
Chicago-Zitierstil (17. Ausg.)Brewster, Ernest. IT Service Management: Support for Your ITSM Foundation Exam. Third edition. Swindon, United Kingdom: BCS, the Chartered Institute for IT, 2016.
MLA-Zitierstil (9. Ausg.)Brewster, Ernest. IT Service Management: Support for Your ITSM Foundation Exam. Third edition. BCS, the Chartered Institute for IT, 2016.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.