To cite censobr in publications use:

  Pereira, R. H. M.; Barbosa, R. J. (2023) censobr: Download Data from
  Brazil's Population Census. R package version v0.4.0,
  <https://CRAN.R-project.org/package=censobr>. DOI:
  10.32614/CRAN.package.censobr.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {censobr: Download Data from Brazil's Population Census},
    author = {Rafael H. M. Pereira and Rogério J. Barbosa},
    year = {2023},
    version = {v0.4.0},
    url = {https://CRAN.R-project.org/package=censobr},
    doi = {10.32614/CRAN.package.censobr},
  }