| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c1853 _d1853 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180514185138.0 | ||
| 008 | 180514b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.235.2 | ||
| 100 |
_aRichardson, Paul A. _95090 |
||
| 245 |
_aActive list of permissible explosives and blasting devices approvinciaed before July 1, 1970 _cRichardson, Paul A. |
||
| 260 |
_aWashington _bBureau of mines _c1970 |
||
| 650 |
_aMINERIA _965 |
||
| 650 |
_aEXPLOSIVOS _91606 |
||
| 942 | _cBK | ||