@misc{indiciae79800c7a7635,
  title = {Comparison of structural and least-squares lines for estimating geologic relations},
  author = {G. P. Williams and B.M. Troutman},
  year = {1990},
  doi = {10.1007/bf00890122},
  url = {https://pubs.usgs.gov/publication/70015955},
  note = {Source identifier: 70015955}
}