| 000 | 00588nam a2200169 4500 | ||
|---|---|---|---|
| 003 | OSt | ||
| 005 | 20220321145758.0 | ||
| 008 | 220321b xxu||||| |||| 00| 0 eng d | ||
| 040 | _cIIT Kanpur | ||
| 041 | _aeng | ||
| 245 |
_aA method for calculating mine ventilation pressure losses using computer and desk-top calculators _bA supplement to information circular 7809 _cE.J. Harris ... [et al.] |
||
| 260 |
_aWashington _bUnited sates department of the interior _c1973 |
||
| 300 | _a22p | ||
| 490 | _aUnited sates department of the interior | ||
| 650 | _aMine ventilation | ||
| 942 | _cBK | ||
| 999 |
_c565505 _d565505 |
||