To cite package ‘cowsay’ in publications use:

Chamberlain S, Dobbyn A (2025). cowsay: Messages, Warnings, Strings with Ascii Animals. R package version 1.2.2, https://github.com/sckott/cowsay.

Corresponding BibTeX entry:

  @Manual{,
    title = {cowsay: Messages, Warnings, Strings with Ascii Animals},
    author = {Scott Chamberlain and Amanda Dobbyn},
    year = {2025},
    note = {R package version 1.2.2},
    url = {https://github.com/sckott/cowsay},
  }