To cite package ‘BioMonTools’ in publications use:

  Leppo E (2026). _BioMonTools: Biomonitoring and Bioassessment
  Calculations_. R package version 1.3.1,
  <https://CRAN.R-project.org/package=BioMonTools>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {BioMonTools: Biomonitoring and Bioassessment Calculations},
    author = {Erik W. Leppo},
    year = {2026},
    note = {R package version 1.3.1},
    url = {https://CRAN.R-project.org/package=BioMonTools},
  }