To cite package ‘rk.lookup’ in publications use:

  Cano A (2025). _rk.lookup: An RKWard plugin for looking up values
  using the 'lookup' package. Features a single interface for both
  Vector-based lookup and Excel-style Vlookup._. R package version
  0.0.1, <https://github.com/alfcano/rk.lookup>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rk.lookup: An RKWard plugin for looking up values using the 'lookup'
package. Features a single interface for both Vector-based
lookup and Excel-style Vlookup.},
    author = {Alfonso Cano},
    year = {2025},
    note = {R package version 0.0.1},
    url = {https://github.com/alfcano/rk.lookup},
  }