@misc{indiciae913fa4daa58d,
  title = {Red slime, black coats, and oily films; the iron and manganese cycles at Huntley Meadows Wetland, Fairfax County, Virginia; field trip guidebook for Geological Society of Washington},
  author = {E. I. Robbins},
  year = {1996},
  doi = {10.3133/ofr9681},
  url = {https://pubs.usgs.gov/publication/ofr9681},
  note = {Source identifier: ofr9681}
}