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|a I 28.23:5406
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| 086 |
0 |
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|a I 28.23:5406
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| 100 |
1 |
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|a Merrill, Robert H.
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| 245 |
1 |
0 |
|a Method of determining the strength of a mine roof /
|c by Robert H. Merrill and Thomas A. Morgan.
|
| 260 |
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|a [Washington, D.C.] :
|b U.S. Dept. of the Interior, Bureau of Mines,
|c 1958.
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| 300 |
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|a 22 pages :
|b illustrations ;
|c 27 cm.
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| 336 |
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|a text
|b txt
|2 rdacontent.
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| 337 |
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|a unmediated
|b n
|2 rdamedia.
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| 338 |
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|a volume
|b nc
|2 rdacarrier.
|
| 490 |
1 |
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|a Report of investigations / United States Department of the Interior, Bureau of Mines ;
|v 5406.
|
| 504 |
|
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|a Bibliography: page 22.
|
| 650 |
|
0 |
|a Mine roof control.
|0 http://id.loc.gov/authorities/subjects/sh85085531.
|
| 700 |
1 |
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|a Morgan, Thomas A.
|0 http://id.loc.gov/authorities/names/n2004095776.
|
| 776 |
0 |
8 |
|i Online version:
|a Merrill, Robert H.
|t Method of determining the strength of a mine roof.
|d [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1958
|w (OCoLC)632807255.
|
| 830 |
|
0 |
|a Report of investigations (United States. Bureau of Mines) ;
|v 5406.
|0 http://id.loc.gov/authorities/names/n42021077.
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