@misc{indiciae169be04f886f,
  title = {Least-squares adjustment of triangles and quadrilaterals in which all angles and distances are observed.},
  author = {W. K. Smith and D. J. Varnes},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/70014197},
  note = {Source identifier: 70014197}
}