APA način citiranja (7. izdanje)
Whapples, D. (2015). Continual service improvement manager: Careers in IT service management. BCS.
Čikaški stil citiranja (17. izdanje)
Whapples, David. Continual Service Improvement Manager: Careers in IT Service Management. Wiltshire, England: BCS, 2015.
MLA način citiranja (9. izdanje)
Whapples, David. Continual Service Improvement Manager: Careers in IT Service Management. BCS, 2015.
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