ITIL continual service improvement
by Lloyd, Vernon, Wheeldon, David, Lacy, Shirley
fromITIL
by Lloyd, Vernon, Wheeldon, David, Lacy, Shirley
fromITIL
by Lloyd, Vernon, Wheeldon, David, Stationery Office (Grande-Bretagne)
fromITIL
by Wheeldon, David, Lacy, Shirley, Hanna, Ashley, Lloyd, V.