| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c4059 _d4059 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180605164224.0 | ||
| 008 | 180605b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.861 | ||
| 110 |
_aU.S. Bureau of mines. Division of Mining Information Systems Health and Safety Analysis Center _98048 |
||
| 245 |
_aInjury experience in the sand and gravel industry, 1975 _cU.S. Bureau of mines. Division of Mining Information Systems Health and Safety Analysis Center |
||
| 260 |
_aWashington _bDepartment of interior _c1978 |
||
| 650 |
_aLESIONES EN LA MINA _98051 |
||
| 650 |
_aMINA DE ARENA _98317 |
||
| 650 |
_aMINA DE GRAVA _98321 |
||
| 942 | _cBK | ||