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_a025.17 _bSIN/I |
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_926653 _aSingh, Gurudev |
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| 245 | _aInformation Sources, Services, and Systems | ||
| 260 |
_aDelhi: _bPHI Private Limited, _c2013. |
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| 300 | _axviii, 517p. | ||
| 505 | _a1. Information Source 2. Kinds of Reference Books and Their Evaluation 3.Dictionaries 4.Encyclopaedias 5. Statistical Sources 6. Patents and Standards | ||
| 650 |
_aLibrary Science _xInformation Sources, Services _926654 |
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| 942 |
_2ddc _cWB16 _02 |
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| 999 |
_c214566 _d214566 |
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