Investigations of the coal fields of Wyoming : by the United States Geological Survey in 1907 / by J.A. Taff ... [et al.]
|Related Names:||Taff, Joseph Alexander 1862-|
Washington : U.S. Government Printing Office, 1909.
Geology > Wyoming.
Coal > Montana.
Coal > Wyoming.
"Advance chapter from Bulletin no. 341, Contributions to Economic Geology, 1907, part II."
ii, 123-282 p.  fold. leaves of plates :
ill., maps ;
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