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			_a3621
942			_cBK
999			_c3621 _d3621