To cite package ‘ibger’ in publications use:

  Leite A, Wasiliew M, Vasconcelos H, Amorim C, Bezerra D (2026).
  _ibger: Access the 'IBGE' Aggregate Data API from 'R'_. R package
  version 0.2.1, <https://github.com/ropensci/ibger>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ibger: Access the 'IBGE' Aggregate Data API from 'R'},
    author = {André Leite and Marcos Wasiliew and Hugo Vasconcelos and Carlos Amorim and Diogo Bezerra},
    year = {2026},
    note = {R package version 0.2.1},
    url = {https://github.com/ropensci/ibger},
  }