To cite rfema in publications use:

  Turner, D. 2022. rfema:Access the openFEMA API. rOpenSci, avaliable
  at https://github.com/ropensci/rfema

A BibTeX entry for LaTeX users is

  @Article{,
    title = {rfema: Access the openFEMA API},
    author = {Dylan Turner},
    journal = {rOpenSci},
    year = {2022},
    url = {https://github.com/ropensci/rfema},
  }