@misc{indiciae9b94ebe7488c,
  title = {Source codes of CLAYFORM and associated file of data constants, a Fortran 77 computer program for calculating structural formulae of clay minerals and other silicates},
  author = {Marc W. Bodine},
  year = {1987},
  doi = {10.3133/ofr874a},
  url = {https://pubs.usgs.gov/publication/ofr874A},
  note = {Source identifier: ofr874A}
}