@misc{indiciaefc1e2baaada3,
  title = {Source, movement, and effects of nitrogen and phosphorus in three ponds in the headwaters of Hop Brook, Marlborough, Massachusetts},
  author = {John C. Briggs and William D. Silvey},
  year = {1984},
  doi = {10.3133/wri844017},
  url = {https://pubs.usgs.gov/publication/wri844017},
  note = {Source identifier: wri844017}
}