000			00305nam a2200145Ia 4500
008			220421s9999||||xx |||||||||||||| ||und||
020			_c225
040			_aBED
100			_aSharma , P.K.
245		0	_aComputer Network
260			_bNandani Pub. _aDelhi
300			_a356
500			_a3469
942			_cBK
999			_c3469 _d3469