To cite package 'AGread' in publications use:

Paul R. Hibbing (2018). AGread: Read Data Files from ActiGraph Monitors. URL https://github.com/paulhibbing/AGread/.

Corresponding BibTeX entry:

  @Misc{,
    title = {AGread: Read Data Files from ActiGraph Monitors},
    author = {Paul R. Hibbing},
    year = {2018},
    url = {https://github.com/paulhibbing/AGread/},
  }