Van Bon, J. (2011). ITIL 2011 edition: A pocket guide. Van Haren Publishing.
Chicagoスタイル(17版)引用形式Van Bon, Jan. ITIL 2011 Edition: A Pocket Guide. Zaltbommel, Netherlands: Van Haren Publishing, 2011.
MLA(9版)引用形式Van Bon, Jan. ITIL 2011 Edition: A Pocket Guide. Van Haren Publishing, 2011.
警告: この引用は必ずしも正確ではありません.