000 00316nam a2200133Ia 4500
008 220201s2009 xx 000 0 eng d
082 _a4.21
_bSTA
100 _aStalling,William
245 0 _aData computer communication
250 _a4th ed
260 _aDelhi
_bPearson Edu.
_c2009
300 _a834
942 _2ddc
999 _c37456
_d37456