@misc{indiciaed1065732ee92,
  title = {Principal facts for six gravity profiles across the Midcontinent Gravity High in Iowa and Nebraska},
  author = {E. R. King and R.E. Mattick},
  year = {1982},
  doi = {10.3133/ofr821072},
  url = {https://pubs.usgs.gov/publication/ofr821072},
  note = {Source identifier: ofr821072}
}