@misc{indiciaede13b5bdf27f,
  title = {Geologic framework of the Willamette Lowland aquifer system, Oregon and Washington},
  author = {Marshall W. Gannett and Rodney R. Caldwell},
  year = {1998},
  doi = {10.3133/pp1424a},
  url = {https://pubs.usgs.gov/publication/pp1424A},
  note = {Source identifier: pp1424A}
}