@misc{indiciae56fa4dbb135a,
  title = {Geochemical distribution of elements in stream sediments and heavy-mineral concentrate samples in the southern half of the National Petroleum Reserve, Alaska},
  author = {P. K. Theobald and H. N. Barton and T. M. Billings and J. G. Frisken and R. L. Turner and George VanTrump},
  year = {1978},
  doi = {10.3133/ofr78517},
  url = {https://pubs.usgs.gov/publication/ofr78517},
  note = {Source identifier: ofr78517}
}