@misc{indiciae2e8bd9b0c261,
  title = {Environmentalism and natural aggregate mining},
  author = {Lawrence J. Drew and William H. Langer and Janet Somerville Sachs},
  year = {2002},
  doi = {10.1023/a:1014283519471},
  url = {https://pubs.usgs.gov/publication/70024049},
  note = {Source identifier: 70024049}
}