APA (7e ed.) Bronvermelding

Morris, H., & Gallacher, L. (2012). ITIL foundation exam study guide. Wiley.

Chicago (17e ed.) Bronvermelding

Morris, Helen, en Liz Gallacher. ITIL Foundation Exam Study Guide. Chichester, U.K.: Wiley, 2012.

MLA (9e ed.) Bronvermelding

Morris, Helen, en Liz Gallacher. ITIL Foundation Exam Study Guide. Wiley, 2012.