To cite package ‘nombre’ in publications use:

  Rossell Hayes A (2024). _nombre: Number Names_. R package version
  0.4.1, , <https://github.com/rossellhayes/nombre>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {nombre: Number Names},
    author = {Alexander {Rossell Hayes}},
    year = {2024},
    note = {R package version 0.4.1, 
},
    url = {https://github.com/rossellhayes/nombre},
  }