@misc{indiciae3b7314156bfe,
  title = {TRIANGL; a ternary diagram program on the PRIME computer},
  author = {B.R. Schachte and B.S. Pierce and M.F. Johnson},
  year = {1986},
  doi = {10.3133/ofr86627},
  url = {https://pubs.usgs.gov/publication/ofr86627},
  note = {Source identifier: ofr86627}
}