| 000 | 00422nam a22001337a 4500 | ||
|---|---|---|---|
| 999 |
_c139551 _d139551 |
||
| 008 | 230610b ||||| |||| 00| 0 hin d | ||
| 082 |
_a500 _bM29V |
||
| 100 |
_aMalhotra, Ravi _9313423 |
||
| 245 |
_aविज्ञान के बढ़ते कदम | Vigyan ke badhte kadam / _cby Ravi Malhotra |
||
| 260 |
_aMeerut _bShabdalock _c1989 |
||
| 300 | _a124p. ill. | ||
| 650 |
_aNatural sciences _9313424 |
||
| 942 | _cBK | ||