@misc{indiciaea46981c367c7,
  title = {A geological engineering application of a knowledge-based geographic information system},
  author = {E. Lynn Usery and David J. Barr and Robin R. P. Deister},
  year = {1988},
  url = {https://pubs.usgs.gov/publication/70231041},
  note = {Source identifier: 70231041}
}