To cite package ‘apyramid’ in publications use:

  Kamvar Z (2024). _apyramid: Visualize Population Pyramids Aggregated
  by Age_. R package version 0.1.3, ,
  <https://github.com/r4epi/apyramid>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {apyramid: Visualize Population Pyramids Aggregated by Age},
    author = {Zhian N. Kamvar},
    year = {2024},
    note = {R package version 0.1.3, },
    url = {https://github.com/r4epi/apyramid},
  }