01196cam a22003011  4500001001300000003000400013005001700017008004100034010001700075035001900092040006600111042001200177050002200189086001600211100003300227245011900260260004800379300009000427490005400517500006400571504003200635650001600667650002800683650002400711650003300735650002900768740009700797gs 31000269 DLC20260227111336.0790928s1931    dcuabf   b   f001 0 eng c  ags 31000269   a(OCoLC)5435866  aLibrary, U. S. Geological SurveycNNBGdNNBGdISSdOCoLCdDLC  apremarc00aQE75b.P9 no. 1680 aI 19.16:1681 aBradley, Wilmot Hyde,d1899-10aOrigin and microfossils of the oil shale of the Green River formation of Colorado and Utah,cby Wilmot H. Bradley.  aWashington,bU.S. Govt. Print. Off.,c1931.  avi, 58 p.bincl. maps, tables, diagr.  28 p. (incl. fold. map, 5 fold diagr.)c29 cm.0 aU. S.  Geological Survey.  Professional paper 168  aAt head of title: United States Department of the Interior.  aBibliographical foot-notes. 0aOil-shales. 0aPaleontologyzColorado. 0aPaleontologyzUtah. 0aMicropaleontologyzColorado. 0aMicropaleontologyzUtah.0 aGreen River formation of Colorado and Utah, Origin and microfossils of the oil shale of the.