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| 037 | _cTheses | ||
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_aShambhu Dayal _9523728 |
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| 110 | _aUniversity of Delhi. Faculty of Mathematical Sciences. Department of Mathematics | ||
| 245 | 0 | _aContribution to the sampling theory of surveys | |
| 260 | _c1980 | ||
| 650 | _aMATHEMATICS | ||
| 700 | _aUniversity of Delhi. Faculty of Mathematical Sciences. Department of Mathematics | ||
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