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 |
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999 |
_c46707 _d46707 |