Bates, R. J. Voice and data communications handbook R J. Bates and Donald W. Gregory - 4th ed. - NewDelhi Tata McGraw-Hill 2001 - xxviii,1074p. ISBN: 0-07-047281-5 Subjects--Topical Terms: Data communicationsTelecommunicationsTelephone network Universal Decimal Class. No.: 621.39 / BAT