@misc{indiciae80dc3e594975,
  title = {Assessment of undiscovered phosphate resource potential of the Dominican Republic},
  author = {R.P. Sheldon and R. C. McDowell},
  year = {1985},
  doi = {10.3133/ofr85732},
  url = {https://pubs.usgs.gov/publication/ofr85732},
  note = {Source identifier: ofr85732}
}