एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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