00469nam a2200157Ia 4500008004100000020001300041082001400054100002500068245004000093250000800133260004100141300003300182500001900215600002700234650005000261240925s9999    xx            000 0 und d  a70634149  a004.6 FOR  aForouzan, Behrouz A. 0aData Communications and Networking   a4th  aNew Delhi:bTata McGraw Hillc,2006.  aVarious pagesbNAfPhotocopy  aIncludes Index  aEngineering Technology  aComputer science, information & general works