@misc{indiciaef6c3d5401f2e,
  title = {Sampling protocol to assess and monitor off-farm transport of waste-associated chemical and microbial constituents present of swine feeding operations},
  author = {Kevin Johnson},
  year = {2001},
  url = {https://pubs.usgs.gov/publication/70169933},
  note = {Source identifier: 70169933}
}