To cite package ‘gbcrosswalk’ in publications use:

  Wang Y (2026). _gbcrosswalk: Crosswalk Chinese GB Industry
  Classifications Across Years_. R package version 0.0.9,
  <https://github.com/robin621/gbcrosswalk>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gbcrosswalk: Crosswalk Chinese GB Industry Classifications Across Years},
    author = {Yajie Wang},
    year = {2026},
    note = {R package version 0.0.9},
    url = {https://github.com/robin621/gbcrosswalk},
  }