To cite package ‘PEcAn.RothC’ in publications use:

  Black C (2026). _PEcAn.RothC: PEcAn Package for Integration of the
  RothC Model_. R package version 0.0.0.9000,
  <https://github.com/pecanproject/pecan>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PEcAn.RothC: PEcAn Package for Integration of the RothC Model},
    author = {Chris Black},
    year = {2026},
    note = {R package version 0.0.0.9000},
    url = {https://github.com/pecanproject/pecan},
  }