@misc{indiciae8cc479e2c2b5,
  title = {Bathymetric survey of Lake Calumet, Cook County, Illinois},
  author = {James J. Duncker and Kevin K. Johnson and Jennifer B. Sharpe},
  year = {2015},
  doi = {10.3133/sim3330},
  url = {https://pubs.usgs.gov/publication/sim3330},
  note = {Source identifier: sim3330}
}