| 000 | 01083cam a2200277 a 4500 | ||
|---|---|---|---|
| 999 |
_c717 _d717 |
||
| 001 | 614269 | ||
| 003 | Bilbioteca de INTEMIN | ||
| 005 | 20180426134344.0 | ||
| 008 | 920221s1992 dcua b f000 0 eng | ||
| 010 | _a 92008898 | ||
| 040 |
_aDLC _cDLC _dDLC |
||
| 050 | 0 | 0 |
_aTN295 _b.U4 no. 9320 _aTN288 |
| 082 | 0 | 0 |
_a622 s _a622/.28 _220 |
| 086 | 0 | _aI 28.27:9320 | |
| 100 | 1 |
_aBarczak, Thomas M. _92354 |
|
| 245 | 1 | 0 |
_aExamination of design and operation practices for longwall shields / _cby Thomas M. Barczak. |
| 260 |
_aWashington, D.C. : _bU.S. Dept. of the Interior, Bureau of Mines, _c1992. |
||
| 300 |
_a14 p. : _bill. ; _c28 cm. |
||
| 490 | 1 |
_aInformation circular ; _v9320 |
|
| 504 | _aIncludes bibliographical references (p. 14). | ||
| 650 | 0 |
_aMine roof control. _9691 |
|
| 650 | 0 |
_aLongwall mining. _92355 |
|
| 830 | 0 |
_aInformation circular (United States. Bureau of Mines) ; _v9320. _9794 |
|
| 906 |
_a7 _bcbc _corignew _d1 _eocip _f19 _gy-gencatlg |
||
| 942 |
_2udc _cCR |
||