@misc{indiciaecd92ee66f13f,
  title = {Hydrologic data for the Big Spring basin, Clayton County, Iowa, water year 1988},
  author = {Stephen J. Kalkhoff},
  year = {1989},
  doi = {10.3133/ofr89230},
  url = {https://pubs.usgs.gov/publication/ofr89230},
  note = {Source identifier: ofr89230}
}