| 000 | 00438nam a22001697a 4500 | ||
|---|---|---|---|
| 999 |
_c827914 _d827914 |
||
| 003 | OSt | ||
| 082 | _a016.5 RAV | ||
| 100 | _aRavi Kumar | ||
| 245 | _aScience and Technology and General Science | ||
| 250 | _a4 | ||
| 260 |
_aHydera Bad _bWinners Publications _c2019 |
||
| 300 | _a639 | ||
| 440 | _aScience and Technology and General Science | ||
| 650 | _aScience and Technology | ||
| 700 | _aPrasanna Harikrishna | ||
| 942 |
_2ddc _cBK |
||