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| 082 | _a793.73 B141F | ||
| 100 | _aBaderia, G. S. | ||
| 245 | 0 | _aFasicnations of mathematical puzzles | |
| 260 |
_aN.D. _bArya _c1991 |
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| 300 | _a87p. | ||
| 690 | _aMATHEMATICAL;PUZZLES | ||
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