@misc{indiciaec36266d10f4f,
  title = {You asked for it! Two-pond polyculture: may be a more profitable way to raise minnows and catfish?},
  author = {G.M. Ludwig and H.E. Bryant},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/1014300},
  note = {Source identifier: 1014300}
}