@misc{indiciaebbd092616c52,
  title = {Kriging analysis of mean annual precipitation, Powder River Basin, Montana and Wyoming},
  author = {M.R. Karlinger and James A. Skrivan},
  year = {1981},
  doi = {10.3133/wri8050},
  url = {https://pubs.usgs.gov/publication/wri8050},
  note = {Source identifier: wri8050}
}