To cite package ‘tufte’ in publications use:

  Xie Y, Allaire J (2024). _tufte: Tufte's Styles for R Markdown
  Documents_. R package version 0.13.1,
  <https://github.com/rstudio/tufte>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {tufte: Tufte's Styles for R Markdown Documents},
    author = {Yihui Xie and JJ Allaire},
    year = {2024},
    note = {R package version 0.13.1},
    url = {https://github.com/rstudio/tufte},
  }