| 000 | 00341pam a2200109a 44500 | ||
|---|---|---|---|
| 082 |
_aTR _bTPR-119 |
||
| 100 | _aCharles T. Chislaghi | ||
| 245 | 1 | _aField test of an automated temporary roof support (arts) on a low-coal,single fixed-head roof-balting machine(squirmer) | |
| 260 |
_a _b _c |
||
| 700 | _aThomas E. Marshall | ||
| 997 | _aTR1164 C | ||
| 999 |
_c404751 _d404751 |
||