000			00320nam a2200145Ia 4500
008			220421s9999||||xx |||||||||||||| ||und||
020			_c160
040			_aET
100			_aVERMA DINESH
245		0	_aDATA COMMU. & NETWORKS
260			_bGULLYBABA PUB. H _aNEW DELHI
300			_a310
500			_a47666
942			_cBK
999			_c53681 _d53681