To cite package ‘CNID’ in publications use:

Chu X (2025). CNID: Get Basic Information from Chinese ID Number. R package version 2.1.1, https://github.com/chuxinyuan/cnid.

Corresponding BibTeX entry:

  @Manual{,
    title = {CNID: Get Basic Information from Chinese ID Number},
    author = {Xinyuan Chu},
    year = {2025},
    note = {R package version 2.1.1},
    url = {https://github.com/chuxinyuan/cnid},
  }