To cite package ‘rddi’ in publications use:

  Woulfin D, Anker P (2022). _rddi: R Interface to DDI Codebook 2.5_. R
  package version 0.1.1, <https://github.com/nyuglobalties/rddi>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rddi: R Interface to DDI Codebook 2.5},
    author = {Daniel Woulfin and Patrick Anker},
    year = {2022},
    note = {R package version 0.1.1},
    url = {https://github.com/nyuglobalties/rddi},
  }