Zorkoczy, P. Heap, N. Information Technology An Introduction - Pitman 1995 - p255 - Management Telecommunications Audio & Video Systems Computers Digital Networks Satellite Communucations Electronic Mail ISBN: 0-273-60591-7 = Zorkoczy, P. Standard No.: M Standard Tech. Report. No.: LCCN: B Nat. Bib. No.: 5778 Nat. Bib. Agency Control No.: 025.5:62ZOR Subjects--Topical Terms: Information Technology Universal Decimal Class. No.: 025.5:62