Vista normal Vista MARC Vista ISBD

Woodruff, E G.

Oil shale of Northwestern Colorado and Northeastern Utah. - Washington-US : United States Geological Survey Bulletin, 1914. - páginas 1-21 : IIustraciones blanco y negro - No. 581-A (1914) - United States Geological Survey Bulletin ; no.581-A . - United States Geological Survey. .