@misc{indiciaedb03eae48098,
  title = {Potential-field geophysical programs for IBM compatible microcomputers version 1.0; source code, programs A-R},
  author = {Richard H. Godson and Margaret R. Mall},
  year = {1989},
  doi = {10.3133/ofr89197e},
  url = {https://pubs.usgs.gov/publication/ofr89197E},
  note = {Source identifier: ofr89197E}
}