To cite package ‘twoway’ in publications use:

Friendly M, Heiberger RM (2026). twoway: Analysis of Two-Way Tables. R package version 0.7.0, https://github.com/friendly/twoway.

Corresponding BibTeX entry:

  @Manual{,
    title = {twoway: Analysis of Two-Way Tables},
    author = {Michael Friendly and Richard M. Heiberger},
    year = {2026},
    note = {R package version 0.7.0},
    url = {https://github.com/friendly/twoway},
  }