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| 008 | 120330t xxu||||| |||| 00| 0 eng d | ||
| 020 | _a0713611693 | ||
| 040 | _cCLCE | ||
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_2DC20 _a510 MAR |
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| 100 |
_aL.Marsh _93828 |
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| 245 |
_aLets Discover Mathematics _hbk |
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| 260 |
_aLondon _bA and C Black Ltd _c1971 |
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| 300 | _a112p | ||
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