To cite package ‘iucnrdata’ in publications use:

  Santos Andrade P (2026). _iucnrdata: Data from the 'IUCN' Red List of
  Threatened Species_. R package version 0.1.0,
  <https://github.com/paulesantos/iucnrdata>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {iucnrdata: Data from the 'IUCN' Red List of Threatened Species},
    author = {Paul Efren {Santos Andrade}},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/paulesantos/iucnrdata},
  }