To cite package ‘kuniezu’ in publications use:

Uryu S (2023). kuniezu: Assistance on the National Geography of Japan. R package version 0.1.2.9000, https://github.com/uribo/kuniezu.

Corresponding BibTeX entry:

  @Manual{,
    title = {kuniezu: Assistance on the National Geography of Japan},
    author = {Shinya Uryu},
    year = {2023},
    note = {R package version 0.1.2.9000},
    url = {https://github.com/uribo/kuniezu},
  }