To cite package ‘phytoclass’ in publications use:

  Hayward A, Murray T, McKenzie A (2025). _phytoclass: Estimate Chla
  Concentrations of Phytoplankton Groups_. R package version 2.0.0,
  <https://github.com/phytoclass/phytoclass>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {phytoclass: Estimate Chla Concentrations of Phytoplankton Groups},
    author = {Alexander Hayward and Tylar Murray and Andy McKenzie},
    year = {2025},
    note = {R package version 2.0.0},
    url = {https://github.com/phytoclass/phytoclass},
  }