@misc{indiciaec7509a6ba332,
  title = {Water resources of the Portland, Oregon, and Vancouver, Washington area},
  author = {W. C. Griffin and Herbert Swenson and Frank A. Watkins},
  year = {1956},
  doi = {10.3133/cir372},
  url = {https://pubs.usgs.gov/publication/cir372},
  note = {Source identifier: cir372}
}