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007 ta
008 070704s1917 xxu |||| |||||||||||eng|d
035 _a000100959
040 _aAR-BaBNM
_bspa
_eaacr
100 1 _aBastin, Edson S.
245 1 0 _aEconomic geology of Gilpin County and adjacent parts of clear creek and boulder counties, Colorado /
_cEdson S. Bastin
260 _aWashington :
_bGovernment printing office,
_c1917.
300 _a379 p.
942 _2udc
_cLIBRO
999 _c127656
_d127656