To cite package ‘vprint’ in publications use:

  Zeeberg B (2026). _vprint: More Flexible Form of Boolean Verbose_. R
  package version 1.3, <https://CRAN.R-project.org/package=vprint>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {vprint: More Flexible Form of Boolean Verbose},
    author = {Barry Zeeberg},
    year = {2026},
    note = {R package version 1.3},
    url = {https://CRAN.R-project.org/package=vprint},
  }