To cite package ‘PriceIndices’ in publications use:

  Białek J (2024). _PriceIndices: Calculating Bilateral and
  Multilateral Price Indexes_. R package version 0.2.2,
  <https://CRAN.R-project.org/package=PriceIndices>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PriceIndices: Calculating Bilateral and Multilateral Price Indexes},
    author = {Jacek Białek},
    year = {2024},
    note = {R package version 0.2.2},
    url = {https://CRAN.R-project.org/package=PriceIndices},
  }