@misc{indiciaed67f4786633f,
  title = {Oxytetracycline levels produced in catfish serum by three methods of treatment},
  author = {James H. Fribourgh and Jordan A. Robinson and Fred P. Meyer},
  year = {1969},
  url = {https://pubs.usgs.gov/publication/tp39},
  note = {Source identifier: tp39}
}