To cite package ‘klassR’ in publications use:

  Jentoft S, Iancu D, Li L, Berntsen Ø (2025). _klassR: Classifications
  and Codelists for Statistics Norway_. R package version 1.0.2,
  <https://CRAN.R-project.org/package=klassR>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {klassR: Classifications and Codelists for Statistics Norway},
    author = {Susie Jentoft and Diana-Cristina Iancu and Lisa Li and Øyvind I. Berntsen},
    year = {2025},
    note = {R package version 1.0.2},
    url = {https://CRAN.R-project.org/package=klassR},
  }