@misc{indiciae40fe46592a2d,
  title = {Ground-water resources of the Acu Valley, Rio Grande Norte, Brazil},
  author = {Harry G. Rodis and Jonas Maria. de Castro Araujo},
  year = {1968},
  doi = {10.3133/wsp1663c},
  url = {https://pubs.usgs.gov/publication/wsp1663C},
  note = {Source identifier: wsp1663C}
}