@misc{indiciae2407969e9771,
  title = {Sources of nitrogen and phosphorous to northern San Francisco Bay},
  author = {Stephen W. Hager and Laurence E. Schemel},
  year = {1992},
  doi = {10.2307/1352708},
  url = {https://pubs.usgs.gov/publication/70175014},
  note = {Source identifier: 70175014}
}