To cite package ‘geojsonio’ in publications use:

Chamberlain S, Teucher A, Mahoney M (2023). geojsonio: Convert Data from and to 'GeoJSON' or 'TopoJSON'. R package version 0.11.3.9000, https://github.com/ropensci/geojsonio.

Corresponding BibTeX entry:

  @Manual{,
    title = {geojsonio: Convert Data from and to 'GeoJSON' or
      'TopoJSON'},
    author = {Scott Chamberlain and Andy Teucher and Michael Mahoney},
    year = {2023},
    note = {R package version 0.11.3.9000},
    url = {https://github.com/ropensci/geojsonio},
  }