To cite package ‘bookdown’ in publications use:

  Xie Y (2024). _bookdown: Authoring Books and Technical Documents with
  R Markdown_. R package version 0.40,
  <https://github.com/rstudio/bookdown>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {bookdown: Authoring Books and Technical Documents with R Markdown},
    author = {Yihui Xie},
    year = {2024},
    note = {R package version 0.40},
    url = {https://github.com/rstudio/bookdown},
  }

  Xie Y (2016). _bookdown: Authoring Books and Technical Documents with
  R Markdown_. Chapman and Hall/CRC, Boca Raton, Florida. ISBN
  978-1138700109, <https://bookdown.org/yihui/bookdown>.

A BibTeX entry for LaTeX users is

  @Book{,
    title = {bookdown: Authoring Books and Technical Documents with {R} Markdown},
    author = {Yihui Xie},
    publisher = {Chapman and Hall/CRC},
    address = {Boca Raton, Florida},
    year = {2016},
    isbn = {978-1138700109},
    url = {https://bookdown.org/yihui/bookdown},
  }