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| 005 | 20191212161059.0 | ||
| 010 | _aENG-127106 | ||
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| 037 | _bDBAD/PUB | ||
| 082 | _a509.7 | ||
| 100 | _aAgrahari, Ravi P | ||
| 245 |
_aScience and technology : _cby Ravi P Agrahari _bfor civil services preliminary and main examination / |
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| 250 | _a3rd ed. | ||
| 260 |
_aChennai _bMcGraw Hill Education _c2020 |
||
| 270 |
_a444/1, Sri Ekambara Naicker Industrial Estate _bPorur , Chennai _e600116 |
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| 300 |
_avarious paging . _c23cm(pbk) |
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_2ddc _cEN _h509.7 _mAGR |
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