To cite package ‘imbibe’ in publications use:

  Clayden J, Rorden C (2020). _imbibe: A Pipe-Friendly Image
  Calculator_. R package version 0.1.0,
  <https://github.com/jonclayden/imbibe>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {imbibe: A Pipe-Friendly Image Calculator},
    author = {Jon Clayden and Chris Rorden},
    year = {2020},
    note = {R package version 0.1.0},
    url = {https://github.com/jonclayden/imbibe},
  }