To cite 'datasailr' in publications use:

  Umehara, T., (2021). datasailr - An R Package for Row by Row Data
  Processing, Using DataSailr Script. Journal of Open Source Software,
  6(61), 3166, https://doi.org/10.21105/joss.03166

A BibTeX entry for LaTeX users is

  @Article{,
    title = {datasailr - An R Package for Row by Row Data Processing, Using DataSailr Script},
    author = {Toshihiro Umehara},
    year = {2021},
    journal = {Journal of Open Source Software},
    volume = {6},
    number = {61},
    pages = {3166},
    doi = {10.21105/joss.03166},
    url = {https://doi.org/10.21105/joss.03166},
  }