To cite gunit in publications use:

Muir CD (2019) gunit: Converts Conductance Units. R package version 1.0.0. https://github.com/cdmuir/gunit

Corresponding BibTeX entry:

  @Manual{,
    title = {gunit: Converts Conductance Units},
    author = {Christopher D. Muir},
    year = {2019},
    url = {https://github.com/cdmuir/gunit},
  }