@misc{indiciae96ca7e75b9bd,
  title = {Computer program for the calculation of grain size statistics by the method of moments},
  author = {Michael B. Sawyer},
  year = {1977},
  doi = {10.3133/ofr77580},
  url = {https://pubs.usgs.gov/publication/ofr77580},
  note = {Source identifier: ofr77580}
}