| 000 | 00351nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 190719s9999 xx 000 0 und d | ||
| 082 | _a622.6 B945 | ||
| 100 | _aBUTREAU OF UNITED STATES DEPARTMENT OF THE INTERIOR | ||
| 245 | 0 | _aMINE HOIST ELECTRICAL SYSTEMS STUDY | |
| 260 |
_aWashington _bBUREAU OF MINES _c1985 |
||
| 300 | _a28X22 | ||
| 942 |
_cBK _2DDC |
||
| 999 |
_c46707 _d46707 |
||