To cite package ‘apa’ in publications use:

Gromer D (2026). apa: Format Outputs of Statistical Tests According to APA Guidelines. R package version 0.3.5.9000, https://github.com/dgromer/apa.

Corresponding BibTeX entry:

  @Manual{,
    title = {apa: Format Outputs of Statistical Tests According to APA
      Guidelines},
    author = {Daniel Gromer},
    year = {2026},
    note = {R package version 0.3.5.9000},
    url = {https://github.com/dgromer/apa},
  }