Van Bon, J. (2011). ITIL 2011 edition: A pocket guide. Van Haren Publishing.
Chicago Style (17th ed.) CitationVan Bon, Jan. ITIL 2011 Edition: A Pocket Guide. Zaltbommel, Netherlands: Van Haren Publishing, 2011.
MLA (9th ed.) CitationVan Bon, Jan. ITIL 2011 Edition: A Pocket Guide. Van Haren Publishing, 2011.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.