To cite package ‘countryatlas’ in publications use:

Yu Y (2026). countryatlas: Join World Bank Data, Country Codes and Maps on the ISO Spine. R package version 1.0.0, https://CRAN.R-project.org/package=countryatlas.

Corresponding BibTeX entry:

  @Manual{,
    title = {countryatlas: Join World Bank Data, Country Codes and Maps
      on the ISO Spine},
    author = {Youzhi Yu},
    year = {2026},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=countryatlas},
  }