TY  - RPRT
TI  - Epilogue: Lessons yet to be learned
AU  - D. W. Sparling
AU  - C.A. Bishop
AU  - B.D. Pauli
AU  - S. Money
PY  - 2000
UR  - https://pubs.usgs.gov/publication/5211064
ID  - 5211064
ER  -