To cite package ‘rredlist’ in publications use:

  Gearty W, Chamberlain S (2024). _rredlist: 'IUCN' Red List Client_. R
  package version 0.7.1, <https://github.com/ropensci/rredlist>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rredlist: 'IUCN' Red List Client},
    author = {William Gearty and Scott Chamberlain},
    year = {2024},
    note = {R package version 0.7.1},
    url = {https://github.com/ropensci/rredlist},
  }