@misc{indiciae515733de50a2,
  title = {Hydraulic characteristics of an underdrained irrigation circle, Muskegon County, wastewater disposal system, Michigan},
  author = {M.G. McDonald},
  year = {1981},
  doi = {10.3133/wsp2081},
  url = {https://pubs.usgs.gov/publication/wsp2081},
  note = {Source identifier: wsp2081}
}