To cite package ‘widr’ in publications use:

  Lim C (2026). _widr: Interface to the World Inequality Database
  (WID)_. R package version 0.1.1,
  <https://github.com/cherylisabella/widr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {widr: Interface to the World Inequality Database (WID)},
    author = {Cheryl Isabella Lim},
    year = {2026},
    note = {R package version 0.1.1},
    url = {https://github.com/cherylisabella/widr},
  }