@misc{indiciaed576ab6d11b0,
  title = {Photomosaic base map of the Willamette River basin, Oregon: A tool for land and water-resource planning},
  author = {S. D. Vickers and W. M. Brown and Antonio Jurado and D. A. Rickert},
  year = {1975},
  doi = {10.3133/i921a},
  url = {https://pubs.usgs.gov/publication/i921A},
  note = {Source identifier: i921A}
}