@misc{indiciae5103f8c45aab,
  title = {U.S. Geological Survey - Missouri Geological Survey symposium; mineral-resource potential of the Midcontinent; program and abstracts},
  author = {Martin B. Goldhaber},
  year = {1989},
  doi = {10.3133/ofr89169},
  url = {https://pubs.usgs.gov/publication/ofr89169},
  note = {Source identifier: ofr89169}
}