Estimate of known recoverable reserves of coking coal in Armstrong County, Pa.

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090 ‡aTN23 ‡b.U5r no. 4801 1951
090 ‡aTN23 ‡b.U64
035 ‡a(OCoLC)30622250
245 0 0 ‡aEstimate of known recoverable reserves of coking coal in Armstrong County, Pa. / ‡cby James J. Dowd ... [et al.
260 ‡a[Washington, DC] : ‡bU.S. Dept. of the Interior, Bureau of Mines, ‡c1951.
300 ‡avi, 16 p. : ‡bill., maps ; ‡c27 cm.
490 0 ‡aReport of investigations ; ‡v4801.
504 ‡aIncludes bibliographical references.
538 ‡aMode of access: Internet.
650 0 ‡aCoal ‡zPennsylvania ‡zArmstrong County.
700 1 ‡aDowd, James J.
710 1 ‡aUnited States. ‡bBureau of Mines.
CID ‡a101744609
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DAT 1 ‡a20161104090546.0 ‡b2023-12-25T19:07:30Z
DAT 2 ‡a2023-12-25T18:30:02Z
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