00390nam a2200145Ia 4500008004100000084001600041100002200057245004900079250002000128260002800148260000900176260001400185300001000199500003500209180424s9999    xx            000 0 und d  a510.78 B213  a"Black, Uyless D" 0aData Communications and Distributed Networks  a\\200703ENGGPCX  aPrentice Hall of India   b2007  cNew Delhi  a426p.  aincludes index and biblioraphy