Cita APA (7th ed.)

Van Bon, J. (2011). ITIL 2011 edition: A pocket guide. Van Haren Publishing.

Cita Chicago (17th ed.)

Van Bon, Jan. ITIL 2011 Edition: A Pocket Guide. Zaltbommel, Netherlands: Van Haren Publishing, 2011.

Cita MLA (9th ed.)

Van Bon, Jan. ITIL 2011 Edition: A Pocket Guide. Van Haren Publishing, 2011.