@misc{indiciaefdbb0bfee981,
  title = {Modeling sand and gravel deposits; initial strategy and preliminary examples},
  author = {J. D. Bliss},
  year = {1993},
  doi = {10.3133/ofr93200},
  url = {https://pubs.usgs.gov/publication/ofr93200},
  note = {Source identifier: ofr93200}
}