Timbering along the robbing line : factors influencing falls of roof in coal mines

LDR 01037cam a2200289Ka 4500
001 012212569
003 MiAaHDL
005 20221205000000.0
006 m d
007 cr bn ---auaua
008 990227s1927 dcu f000 0 eng d
035 ‡a(MiU)990122125690106381
035 ‡asdr-miu.990122125690106381
035 ‡z(MiU)MIU01000000000000012212569-goog
035 ‡a(OCoLC)40870445
035 ‡z(MiU)Aleph012212569
040 ‡aQPC ‡cQPC ‡dLHL ‡dUSBMI
049 ‡aUSBI
086 0 ‡aC 22.11:6042
100 1 ‡aPaul, J. W. ‡q(James Washington)
245 1 0 ‡aTimbering along the robbing line : ‡bfactors influencing falls of roof in coal mines / ‡cby J.W. Paul.
260 ‡aWashington, D.C. : ‡bU.S. Dept. of Commerce, Bureau of Mines, ‡c1927.
300 ‡a2 p. ; ‡c23 cm.
490 0 ‡aInformation circular / Bureau of Mines ; ‡v6042
538 ‡aMode of access: Internet.
650 0 ‡aCoal mines and mining ‡xSafety measures.
650 0 ‡aMine timbering.
730 0 ‡aTechnical Report Archive and Image Library (TRAIL)
899 ‡a39015086471433
CID ‡a012212569
DAT 0 ‡b20221205000000.0
DAT 1 ‡a20221206110740.0 ‡b2024-02-23T19:01:59Z
CAT ‡aSDR-MIU ‡cmiu ‡dALMA ‡lprepare.pl-004-008
FMT ‡aBK
HOL ‡0sdr-miu.990122125690106381 ‡aMiU ‡bSDR ‡cGWLA ‡f012212569 ‡pmdp.39015086471433 ‡sMIU ‡1990122125690106381
974 ‡bMIU ‡cGWLA ‡d20240223 ‡sgoogle ‡umdp.39015086471433 ‡y1927 ‡rpd ‡qbib ‡tUS fed doc