@misc{indiciae53b2f66c8816,
  title = {Proceedings of the First National U.S. Fish and Wildlife Service Geographic Information Systems Workshop, June 4-7, 1990},
  author = {Frank D’Erchia},
  year = {1990},
  url = {https://pubs.usgs.gov/publication/70123430},
  note = {Source identifier: 70123430}
}