To cite package ‘dialr’ in publications use:

  Smith D (2023). _dialr: Parse, Format, and Validate International
  Phone Numbers_. R package version 0.4.2,
  <https://CRAN.R-project.org/package=dialr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {dialr: Parse, Format, and Validate International Phone Numbers},
    author = {Danny Smith},
    year = {2023},
    note = {R package version 0.4.2},
    url = {https://CRAN.R-project.org/package=dialr},
  }