000 01225cam a22003131 4500
001 gs 31000269
003 DLC
005 20260227111336.0
008 790928s1931 dcuabf b f001 0 eng c
010 _ags 31000269
035 _a(OCoLC)5435866
040 _aLibrary, U. S. Geological Survey
_cNNBG
_dNNBG
_dISS
_dOCoLC
_dDLC
042 _apremarc
050 0 0 _aQE75
_b.P9 no. 168
086 0 _aI 19.16:168
100 1 _aBradley, Wilmot Hyde,
_d1899-
245 1 0 _aOrigin and microfossils of the oil shale of the Green River formation of Colorado and Utah,
_cby Wilmot H. Bradley.
260 _aWashington,
_bU.S. Govt. Print. Off.,
_c1931.
300 _avi, 58 p.
_bincl. maps, tables, diagr. 28 p. (incl. fold. map, 5 fold diagr.)
_c29 cm.
490 0 _aU. S. Geological Survey. Professional paper 168
500 _aAt head of title: United States Department of the Interior.
504 _aBibliographical foot-notes.
650 0 _aOil-shales.
650 0 _aPaleontology
_zColorado.
650 0 _aPaleontology
_zUtah.
650 0 _aMicropaleontology
_zColorado.
650 0 _aMicropaleontology
_zUtah.
740 0 _aGreen River formation of Colorado and Utah, Origin and microfossils of the oil shale of the.
999 _c26917
_d26917