To cite package ‘usdampr’ in publications use:

Chen B, Dennis E (2021). usdampr: Request USDA MPR Historical Data via the 'LMR' API. R package version 1.0.2, https://github.com/cbw1243/usdampr.

Corresponding BibTeX entry:

  @Manual{,
    title = {usdampr: Request USDA MPR Historical Data via the 'LMR'
      API},
    author = {Bowen Chen and Elliott Dennis},
    year = {2021},
    note = {R package version 1.0.2},
    url = {https://github.com/cbw1243/usdampr},
  }