000 00335nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c150
040 _aBED
100 _aGill , Nasib S.
245 0 _aEssen of Computer Network Technology
260 _bKhanna Book Pub.
_aNew Delhi
300 _a340
500 _a3622
942 _cBK
999 _c3622
_d3622