| 000 | 00472pam a2200157a 44500 | ||
|---|---|---|---|
| 082 |
_aIC-7696 _b- |
||
| 100 | _aShields,J. J. | ||
| 245 | 1 | _aMechanical mining in some bituminous-coal mines | |
| 260 |
_a _bU.S. Dept. Of The Interior,Washington _c1954 |
||
| 300 | _a118, | ||
| 440 |
_aBureauof Mines Information Circular,United State Department Of The Interior _vIc-7696 |
||
| 500 | _aBound With:Ic-No.7694-7699 | ||
| 700 | _a, | ||
| 964 | _gCIRC | ||
| 997 | _aTR5295 C | ||
| 999 |
_c391931 _d391931 |
||