To cite package ‘choroplethr’ in publications use:

  Lamstein A (2024). _choroplethr: Simplify the Creation of Choropleth
  Maps in R_. R package version 3.7.3,
  <https://github.com/cranhaven/cranhaven.r-universe.dev>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {choroplethr: Simplify the Creation of Choropleth Maps in R},
    author = {Ari Lamstein},
    year = {2024},
    note = {R package version 3.7.3},
    url = {https://github.com/cranhaven/cranhaven.r-universe.dev},
  }