@misc{indiciae0edf6dde5f83,
  title = {Non-energy minerals and surficial geology of the continental margin of Maryland},
  author = {R.T. Kerhin},
  year = {1989},
  doi = {10.1016/0025-3227(89)90118-7},
  url = {https://pubs.usgs.gov/publication/70015417},
  note = {Source identifier: 70015417}
}