@misc{indiciae23cb9b1d5248,
  title = {Simulation analysis of the ground-water flow system in the Portland Basin, Oregon and Washington},
  author = {David S. Morgan and William D. McFarland},
  year = {1996},
  doi = {10.3133/wsp2470b},
  url = {https://pubs.usgs.gov/publication/wsp2470B},
  note = {Source identifier: wsp2470B}
}