To cite covid19.analytics in publications use:

  Ponce et al. (2021). covid19.analytics: An R Package to Obtain,
  Analyze and Visualize Data from the Coronavirus Disease Pandemic.
  Journal of Open Source Software, 6(59), 2995.
  https://doi.org/10.21105/joss.02995

A BibTeX entry for LaTeX users is

  @Article{,
    title = {covid19.analytics: An R Package to Obtain, Analyze and Visualize Data from the Coronavirus Disease Pandemic},
    author = {Marcelo Ponce and Amit Sandhel},
    journal = {Journal of Open Source Software},
    year = {2021},
    volume = {6},
    number = {59},
    doi = {10.21105/joss.02995},
  }