APA citiranje

Griffiths, R. (2014). Service offerings and agreements: A guide for ITIL exam candidates. BCS Learning & Development Ltd.

Trích dẫn kiểu Chicago

Griffiths, Richard. Service Offerings and Agreements: A Guide for ITIL Exam Candidates. BCS Learning & Development Ltd, 2014.

MLA citiranje

Griffiths, Richard. Service Offerings and Agreements: A Guide for ITIL Exam Candidates. BCS Learning & Development Ltd, 2014.