@misc{indiciaeb5df5a3b9531,
  title = {Some potential effects of spilled petroleum on shorelines of the Port Townsend Quadrangle, central Puget Sound region, Washington},
  author = {Ralph F. Keuler},
  year = {1980},
  doi = {10.3133/ofr80724},
  url = {https://pubs.usgs.gov/publication/ofr80724},
  note = {Source identifier: ofr80724}
}