@misc{indiciae93d3743f62b3,
  title = {Acid-extractable alumina and water-soluble sodium analyses and histograms of Eocene Green River Formation from U.S. Geological Survey coreholes CR-1 and CR-2, Piceance Creek basin, Rio Blanco County, Colorado},
  author = {John R. Donnell and Marjorie C. Smith},
  year = {1980},
  doi = {10.3133/ofr80663},
  url = {https://pubs.usgs.gov/publication/ofr80663},
  note = {Source identifier: ofr80663}
}