2.
Planning Office Automation : Electronic Message Systems
by Pritchard, J.A.T., Wilson, ...
ISBN: 9780850123319
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Security in Communications Systems, 1979
by Pritchard, J.A.T., National...
ISBN: 9780850121995
List Price: $20.00
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Planning Office Automation: Information Management Systems
by Pritchard, J.A.T., Cole, I.
ISBN: 9780850123661