To cite package ‘XKCDdata’ in publications use:

McDonnell R (2017). XKCDdata: Get XKCD Comic Data. R package version 0.1.0, https://CRAN.R-project.org/package=XKCDdata.

Corresponding BibTeX entry:

  @Manual{,
    title = {XKCDdata: Get XKCD Comic Data},
    author = {Robert Myles McDonnell},
    year = {2017},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=XKCDdata},
  }