To cite package ‘emmeans’ in publications use:

  Lenth R (2024). _emmeans: Estimated Marginal Means, aka Least-Squares
  Means_. R package version 1.10.4,
  <https://CRAN.R-project.org/package=emmeans>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {emmeans: Estimated Marginal Means, aka Least-Squares Means},
    author = {Russell V. Lenth},
    year = {2024},
    note = {R package version 1.10.4},
    url = {https://CRAN.R-project.org/package=emmeans},
  }