000			00389 a2200145 4500
082			_a001.64404 _bN213i
100	1		_aPRITCHARD, J. A. T.
245	1		_aINTRODUCTION TO ON-LINE SYSTEMS
260			_aManchester _bNcc _c1976
300			_a,100,,,,,
500			_aSponsored By National Computing Centre Limited
650			_aOn-Line Data Processing
964			_gCIRC
997			_aA50621 C
999			_c469267 _d469267