@misc{indiciaeab688d4e32fd,
  title = {Methods for collection and analysis of aquatic biological and microbiological samples},
  author = {L. J. Britton and P. E. Greeson},
  year = {1988},
  doi = {10.3133/ofr88190},
  url = {https://pubs.usgs.gov/publication/ofr88190},
  note = {Source identifier: ofr88190}
}