@misc{indiciae2d443e16a272,
  title = {Composition and Distribution of Streambed Sediments in the Penobscot River, Maine, May 1999},
  author = {Robert W. Dudley and Sarah E. Giffen},
  year = {2001},
  doi = {10.3133/wri20014223},
  url = {https://pubs.usgs.gov/publication/wri20014223},
  note = {Source identifier: wri20014223}
}