@misc{indiciae876be16df393,
  title = {Geology and ground water of the Molalla-Salem slope area, northern Willamette Valley, Oregon},
  author = {E. R. Hampton},
  year = {1972},
  doi = {10.3133/wsp1997},
  url = {https://pubs.usgs.gov/publication/wsp1997},
  note = {Source identifier: wsp1997}
}