To cite package ‘purrr’ in publications use:

  Wickham H, Henry L (2025). _purrr: Functional Programming Tools_. R
  package version 1.0.4, <https://CRAN.R-project.org/package=purrr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {purrr: Functional Programming Tools},
    author = {Hadley Wickham and Lionel Henry},
    year = {2025},
    note = {R package version 1.0.4},
    url = {https://CRAN.R-project.org/package=purrr},
  }