@misc{indiciaec7a821e6e6d4,
  title = {Environmental benefits vs. costs of geologic mapping},
  author = {S.B. Bhagwat and R. C. Berg},
  year = {1992},
  doi = {10.1007/bf01740575},
  url = {https://pubs.usgs.gov/publication/70016577},
  note = {Source identifier: 70016577}
}