To cite package ‘nomnoml’ in publications use:

  de Vries A, Luraschi J (2024). _nomnoml: Sassy 'UML' Diagrams_. R
  package version 0.3.0, <https://github.com/rstudio/nomnoml>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {nomnoml: Sassy 'UML' Diagrams},
    author = {Andrie {de Vries} and Javier Luraschi},
    year = {2024},
    note = {R package version 0.3.0},
    url = {https://github.com/rstudio/nomnoml},
  }