@misc{indiciaeb5741bb3d8d7,
  title = {Element concentrations in soils and other surficial materials of Alaska},
  author = {L. P. Gough and R. C. Severson and H.T. Shacklette},
  year = {1988},
  doi = {10.3133/pp1458},
  url = {https://pubs.usgs.gov/publication/pp1458},
  note = {Source identifier: pp1458}
}