000 00311nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c150
040 _aBED
100 _aVerma , S.K.
245 0 _aComputer Network
260 _bSun India Pub.
_aNew Delhi
300 _a5.97
500 _a3612
942 _cBK
999 _c3612
_d3612