To cite package ‘vprint’ in publications use:

  Zeeberg B (2025). _vprint: More Flexible Form of Boolean Verbose_. R
  package version 1.2, <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 = {2025},
    note = {R package version 1.2},
    url = {https://CRAN.R-project.org/package=vprint},
  }