To cite epiworldR in publications use:

  Meyer, Derek and Vega Yon, George (2023). epiworldR: Fast Agent-Based
  Epi Models. Journal of Open Source Software, 8(90), 5781,
  https://doi.org/10.21105/joss.05781

A BibTeX entry for LaTeX users is

  @Article{,
    entry = {Article},
    title = {epiworldR: Fast Agent-Based Epi Models},
    author = {Derek Meyer and George {Vega Yon}},
    journal = {The Journal of Open Source Software},
    year = {2023},
    month = {oct},
    volume = {8},
    number = {90},
    doi = {10.21105/joss.05781},
    url = {https://joss.theoj.org/papers/10.21105/joss.05781},
  }

And the actual R package:

  Meyer D, Vega Yon G (????). _epiworldR: Fast Agent-Based Epi Models_.
  R package version 0.5-0, <https://github.com/UofUEpiBio/epiworldR>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{{epiworldR: Fast Agent-Based Epi Models}}},
    author = {Derek Meyer and George {Vega Yon}},
    note = {R package version 0.5-0},
    url = {https://github.com/UofUEpiBio/epiworldR},
  }