@misc{indiciae257cc2d03c03,
  title = {Humic substances in the Suwannee River, Georgia; interactions, properties, and proposed structures},
  year = {1989},
  doi = {10.3133/ofr87557},
  url = {https://pubs.usgs.gov/publication/ofr87557},
  note = {Source identifier: ofr87557}
}