00426nam a2200169Ia 4500008004100000020001800041041000800059082001500067100001500082245004900097250001200146260003300158300002500191365001600216500000900232700001500241230718s9999    xx            000 0 und d  a81-203-0925-1  aeng  a004.6bBLA  aBlack U.D.  aData Communications And Distributed Networks  a3rd ed.  c1995bPrentice Hall Of India  a426dRef 89 E (4492)  cRs.b125.00  a89 E  aBlack U.D.