To cite package ‘libr’ in publications use:

  Bosak D (2024). _libr: Libraries, Data Dictionaries, and a Data Step
  for R_. R package version 1.3.7,
  <https://CRAN.R-project.org/package=libr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {libr: Libraries, Data Dictionaries, and a Data Step for R},
    author = {David Bosak},
    year = {2024},
    note = {R package version 1.3.7},
    url = {https://CRAN.R-project.org/package=libr},
  }