| 000 | 00446nam a2200181Ia 4500 | ||
|---|---|---|---|
| 005 | 20250619145304.0 | ||
| 008 | 250619s9999||||xx |||||||||||||| ||und|| | ||
| 020 | _c20 | ||
| 040 | _aMAIN | ||
| 041 | _aEnglish | ||
| 082 |
_a500 _bGAU |
||
| 100 | _aGaur, V.K. and others | ||
| 245 | 0 | _aScience | |
| 260 |
_aNew Delhi _b; National Council Of Educational Research And Training _c, 1989 |
||
| 300 | _a244p. | ||
| 650 | _aScience | ||
| 942 | _cBK | ||
| 999 |
_c126526 _d126526 |
||