@misc{indiciae2a9af3a73922,
  title = {Element concentrations in surface soils of the Coconino Plateau, Grand Canyon region, Coconino County, Arizona},
  author = {Bradley S. Van Gosen},
  year = {2016},
  doi = {10.3133/ofr20161160},
  url = {https://pubs.usgs.gov/publication/ofr20161160},
  note = {Source identifier: ofr20161160}
}