@misc{indiciae1f4bc1f43619,
  title = {Generalized configuration of the top of the limestone unit of the lower part of the surficial aquifer, Duval County, Florida},
  author = {Rick M. Spechler},
  year = {1982},
  doi = {10.3133/ofr82336},
  url = {https://pubs.usgs.gov/publication/ofr82336},
  note = {Source identifier: ofr82336}
}