To cite package ‘guerrilla’ in publications use:

  Sumner M (2024). _guerrilla: Illustrate Various Methods of
  Interpolation for Irregular Data_. R package version 0.2.0.9001, ,
  <https://github.com/hypertidy/guerrilla>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {guerrilla: Illustrate Various Methods of Interpolation for Irregular Data},
    author = {Michael Sumner},
    year = {2024},
    note = {R package version 0.2.0.9001, 
},
    url = {https://github.com/hypertidy/guerrilla},
  }