@misc{indiciae9f284ecc516d,
  title = {A personal computer version of PHAS20, for the simultaneous multiple regression of thermochemical data},
  author = {J.W. Ball and George A. Parks and J.L. Haas and D. Kirk Nordstrom},
  year = {1988},
  doi = {10.3133/ofr88489a},
  url = {https://pubs.usgs.gov/publication/ofr88489A},
  note = {Source identifier: ofr88489A}
}