Comparative laboratory evaluation of resin-grouted roof bolt elements

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086 0 ‡aI 28.23:8924
100 1 ‡aBartels, John R.
245 1 0 ‡aComparative laboratory evaluation of resin-grouted roof bolt elements / ‡cby John R. Bartels and Deno M. Pappas.
260 ‡a[Pittsburgh, Pa.] : ‡bU.S. Dept. of the Interior, Bureau of Mines, ‡c[1985]
300 ‡a20 p. : ‡bill. ; ‡c28 cm.
490 0 ‡aReport of investigations / Bureau of Mines ; ‡v8924
504 ‡aBibliography: p. 14.
538 ‡aMode of access: Internet.
650 0 ‡aMine roof bolts, Resin ‡xTesting.
700 1 ‡aPappas, Deno M.
899 ‡a39015078469841
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