@misc{indiciae925c2e4b8fb7,
  title = {Effect of septic-tank wastes on quality of water, Ipswich and Shawsheen River basins, Massachusetts},
  author = {L.G. Toler and George B. Morrill},
  year = {1973},
  url = {https://pubs.usgs.gov/publication/70159850},
  note = {Source identifier: 70159850}
}