@misc{indiciaef0cd2ea1f7a3,
  title = {Chemical, physical, biochemical, and bacteriological characteristics at selected stream sites in Puerto Rico, 1975-76},
  author = {Ferdinand Quinones-Marquez and Pedro Vazquez and Rafael Pena},
  year = {1977},
  doi = {10.3133/ofr77237},
  url = {https://pubs.usgs.gov/publication/ofr77237},
  note = {Source identifier: ofr77237}
}