@misc{indiciae7fac6f3298dd, title = {Contributions to economic geology (short papers and preliminary reports), 1930, Part II, Mineral fuel. Bituminous sandstone near Vernal, Utah}, author = {E. M. Spieker}, year = {1931}, doi = {10.3133/b822c}, url = {https://pubs.usgs.gov/publication/b822C}, note = {Source identifier: b822C} }