To cite package ‘ggeffects’ in publications use:

  Lüdecke D (2018). “ggeffects: Tidy Data Frames of Marginal Effects
  from Regression Models.” _Journal of Open Source Software_, *3*(26),
  772. doi:10.21105/joss.00772 <https://doi.org/10.21105/joss.00772>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {ggeffects: Tidy Data Frames of Marginal Effects from Regression Models.},
    volume = {3},
    doi = {10.21105/joss.00772},
    number = {26},
    journal = {Journal of Open Source Software},
    author = {Daniel Lüdecke},
    year = {2018},
    pages = {772},
  }