@misc{indiciaef436228ee446,
  title = {Flood-prone areas in the Sonoma Creek drainage basin, Sonoma and Marin Counties, California, including Glen Ellen, Sonoma, Sears Point, and Petaluma Point 7 1/2-minute quadrangles},
  author = {U.S. Geological Survey},
  year = {1971},
  doi = {10.3133/70210292},
  url = {https://pubs.usgs.gov/publication/70210292},
  note = {Source identifier: 70210292}
}