ITIL Service Operation
by David Cannon,David Wheeldon
ISBN 13: 9780113310463
Format: Paperback (274 pages) Publisher: TSO Published: 30 May 2007
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Business and Management Skills: Handbook for the IT Service Management Professional (IT Infrastructure Library)
by Central Computer & Telecommunications Agency, David Wheeldon
ISBN 13: 9780113306862
Format: Paperback (154 pages) Publisher: Stationery Office Books Published: 01 Mar 1997