To cite package ‘labeleR’ in publications use:

  Ramos-Gutierrez I, de Aledo JG, Rodríguez-Sánchez F (2024). _labeleR:
  Automate the Production of Custom Labels, Badges, Certificates, and
  Other Documents_. <https://EcologyR.github.io/labeleR/>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {labeleR: Automate the Production of Custom Labels, Badges, Certificates, and Other Documents},
    author = {Ignacio Ramos-Gutierrez and Julia G. {de Aledo} and Francisco Rodríguez-Sánchez},
    year = {2024},
    url = {https://EcologyR.github.io/labeleR/},
  }