To cite package ‘pda’ in publications use:

  Duan R, Edmondson M, Tong J, Liu X, Locke K, Hu J, Zhang B, Shen Y,
  Wang Y, Lu Y, Li L, Chen Y (2025). _pda: Privacy-Preserving
  Distributed Algorithms_. R package version 1.3.0,
  <https://CRAN.R-project.org/package=pda>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pda: Privacy-Preserving Distributed Algorithms},
    author = {Rui Duan and Mackenzie Edmondson and Jiayi Tong and Xiaokang Liu and Kenneth Locke and Jie Hu and Bingyu Zhang and Yicheng Shen and Yudong Wang and Yiwen Lu and Lu Li and Yong Chen},
    year = {2025},
    note = {R package version 1.3.0},
    url = {https://CRAN.R-project.org/package=pda},
  }