Griffiths, R. (2014). Service offerings and agreements: A guide for ITIL exam candidates. BCS Learning & Development Ltd.
Citação norma ChicagoGriffiths, Richard. Service Offerings and Agreements: A Guide for ITIL Exam Candidates. BCS Learning & Development Ltd, 2014.
Citação norma MLAGriffiths, Richard. Service Offerings and Agreements: A Guide for ITIL Exam Candidates. BCS Learning & Development Ltd, 2014.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.