00603nam a2200181Ia 4500 20260904095655.0 260904s9999||||xx |||||||||||||| ||und|| 0-02-415425-3 Cir./004.6/St18/1997 Stallings, William Data and computer communications / William Stallings Upper Saddle River, N.J. : Prentice Hall, 1997 xviii, 798 pages : illustrations ; 24 cm Includes bibliographical references and index. Data transmission systems Computer networks Circulation 10181 10181