To cite package ‘s20x’ in publications use:

  Deppa B, Curran J (2026). _s20x: Functions for University of Auckland
  Course STATS 201/208 Data Analysis_. R package version 3.3.0,
  <https://CRAN.R-project.org/package=s20x>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {s20x: Functions for University of Auckland Course STATS 201/208 Data
Analysis},
    author = {Brant Deppa and James Curran},
    year = {2026},
    note = {R package version 3.3.0},
    url = {https://CRAN.R-project.org/package=s20x},
  }