LEADER 02027oam  2200553I  450 
001 9910706702003321
005 20180205160827.0
035   $a(CKB)5470000002458443
035   $a(OCoLC)974932841
035   $a(EXLCZ)995470000002458443
100   $a20170309d1940      ua             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aTechnology, employment, and output per man in iron mining /$fby N. Yaworski [and four others]
210  1$aPhiladelphia, Pennsylvania :$cWork Projects Administration, National Research Project :$cDepartment of the Interior, Bureau of Mines,$d1940.
215   $a1 online resource (xxiii, 264 pages) $cillustrations, maps
225 1 $aMineral technology and output per man studies ;$vreport no. E-13
300   $a"Work Projects Administration, National Research Project, in cooperation with Department of the Interior, Bureau of Mines."
300   $a"June 1940."
300   $aNo FDLP item number available.
320   $aIncludes bibliographical references.
606   $aIron mines and mining$zUnited States
606   $aMiners$zUnited States
606   $aMining machinery
606   $aIron mines and mining$2fast
606   $aMiners$2fast
606   $aMining machinery$2fast
607   $aUnited States$2fast
615  0$aIron mines and mining
615  0$aMiners
615  0$aMining machinery.
615  7$aIron mines and mining.
615  7$aMiners.
615  7$aMining machinery.
700   $aYaworski$b Nicholas$01408927
712 02$aNational Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques (U.S.),
712 02$aUnited States.$bBureau of Mines,
801  0$bKUK
801  1$bKUK
801  2$bOCLCF
801  2$bOCLCA
801  2$bGPO
906   $aBOOK
912   $a9910706702003321
996   $aTechnology, employment, and output per man in iron mining$93494097
997   $aUNINA