@misc{indiciae461ab9740aba,
  title = {Biogeochemistry of aquatic humic substances in Thoreau's Bog, Concord, Massachusetts},
  author = {Diane M. McKnight and E. Michael Thurman and Robert L. Wershaw and Herold Hemond},
  year = {1985},
  doi = {10.2307/1939187},
  url = {https://pubs.usgs.gov/publication/70186162},
  note = {Source identifier: 70186162}
}