APA aipamena

Brewster, E., & Lawes, A. (2012). IT service management: A guide for ITIL foundation exam candidates, second edition. British Computer Society.

Chicago Style aipamena

Brewster, Ernest, và Aidan Lawes. IT Service Management: A Guide for ITIL Foundation Exam Candidates, Second Edition. British Computer Society, 2012.

MLA aipamena

Brewster, Ernest, và Aidan Lawes. IT Service Management: A Guide for ITIL Foundation Exam Candidates, Second Edition. British Computer Society, 2012.