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024 _a68280
037 _cTextual
040 _aCSL
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041 _aeng
082 _aD65,8(2:55), M0.2
100 _aOpen university
245 0 _cby Open university
_aComputer based information systems : Block 2
260 _c1980
300 _ap.
_ccm.
650 _aComputer science
942 _hD65,8(2:55), M0.2
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999 _c32943
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