@misc{indiciae70aa97c53b4e,
  title = {Relative spatial soil geochemical variability along two transects across the United States and Canada},
  author = {Robert G. Garrett},
  year = {2009},
  doi = {10.1016/j.apgeochem.2009.04.011},
  url = {https://pubs.usgs.gov/publication/70140570},
  note = {Source identifier: 70140570}
}