To cite the toOrdinal package in publications use:

Damian W. Betebenner (2024). {toOrdinal}: Function for Converting Cardinal to Ordinal Numbers by Adding a Language Specific Ordinal Indicator to the Number. (R package version 1.3-9.1) URL: https://centerforassessment.github.io/toOrdinal/

Corresponding BibTeX entry:

  @Manual{,
    title = {{toOrdinal}: Function for Converting Cardinal to Ordinal
      Numbers by Adding a Language Specific Ordinal Indicator to the
      Number.},
    author = {Damian W. Betebenner},
    year = {2024},
    note = {R package version 1.3-9.1},
    url = {https://centerforassessment.github.io/toOrdinal/},
  }