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024 _a9654
037 _cTextual
040 _aSDCL
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041 _2eng
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082 _aD6,8(B),7, M6
100 _aTouretzky David S
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245 0 _aMathematics of inheritance systems .
260 _c1986
942 _hD6,8(B),7, M6
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999 _c812330
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