@misc{indiciaed09588c47d35,
  title = {Epilogue: Lessons yet to be learned},
  author = {D. W. Sparling and C.A. Bishop and B.D. Pauli and S. Money},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/5211064},
  note = {Source identifier: 5211064}
}