To cite `geomander` in publications use:

  Kenny C (2023). _geomander: Geographic Tools for Studying
  Gerrymandering_. R package,
  <https://christophertkenny.com/geomander/>.

A BibTeX entry for LaTeX users is

  @Manual{geomander,
    title = {{geomander}: Geographic Tools for Studying Gerrymandering},
    author = {Christopher T. Kenny},
    year = {2023},
    note = {R package},
    url = {https://christophertkenny.com/geomander/},
  }