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024 _a63785
037 _cTextual
040 _aCSL
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082 _aB:gx, K21 EB
100 _aBenson William H
245 0 _aMathematics for pleasure
260 _c1962
300 _ap.
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650 _aMathematics
700 _a Jacoby Oswald
942 _hB:gx, K21 EB
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