@misc{indiciaeeb7e0860086f,
  title = {Reserves of phosphate in the land-pebble phosphate field, Hardee, Hillsborough, Manatee, Osceola, Pasco, and Polk counties, Florida},
  author = {James Bachelder Cathcart and C.G. Tillman and H.B. Dutro},
  year = {1951},
  doi = {10.3133/tei141},
  url = {https://pubs.usgs.gov/publication/tei141},
  note = {Source identifier: tei141}
}