To cite package ‘joker’ in publications use:

Ho T, Jeffrey W Hollister (2020). joker: Return a Random Joke from APIs. R package version 0.0.3, https://github.com/tanho63/joker.

Corresponding BibTeX entry:

  @Manual{,
    title = {joker: Return a Random Joke from APIs},
    author = {Tan Ho and {Jeffrey W Hollister}},
    year = {2020},
    note = {R package version 0.0.3},
    url = {https://github.com/tanho63/joker},
  }