@misc{indiciae983ad507c753,
  title = {A digital model of the Floridan Aquifer, north of Tampa, Florida},
  author = {A.F. Robertson and M. J. Mallory},
  year = {1977},
  doi = {10.3133/wri7764},
  url = {https://pubs.usgs.gov/publication/wri7764},
  note = {Source identifier: wri7764}
}