Relations of the Wasatch and Green River formations in northwestern Colorado and southern Wyoming with notes on oil shale in the Green River formation / J.D. Sears and W.H. Bradley

Author:: Sears, Julian D. (Julian Ducker), 1891-1970
Published:: [Washington] : [Department of the Interior, United States Geological Survey], [1925]
Physical Description:: 1 online resource (18 unnumbered pages) : illustrations, maps
Additional Creators:: Bradley, Wilmot H. (Wilmot Hyde), 1899- and Geological Survey (U.S.)