@misc{indiciae4ccc8798eb2e,
  title = {Combined use of digital aquifer models and field base-flow data to identify recharge-leakage areas of artesian aquifers},
  author = {Richard H. Johnston and P. Patrick Leahy},
  year = {1977},
  url = {https://pubs.usgs.gov/publication/70046170},
  note = {Source identifier: 70046170}
}