@misc{indiciaef7b9a92e1e02,
  title = {Proceedings of the first annual William Pecora Memorial Symposium, October 1975, Sioux Falls, South Dakota},
  year = {1977},
  doi = {10.3133/pp1015},
  url = {https://pubs.usgs.gov/publication/pp1015},
  note = {Source identifier: pp1015}
}