To cite package ‘usdarnass’ in publications use:

Dinterman R, Eyer J (2020). usdarnass: USDA NASS Quick Stats API. R package version 0.1.1, https://github.com/rdinter/usdarnass.

Corresponding BibTeX entry:

  @Manual{,
    title = {usdarnass: USDA NASS Quick Stats API},
    author = {Robert Dinterman and Jonathan Eyer},
    year = {2020},
    note = {R package version 0.1.1},
    url = {https://github.com/rdinter/usdarnass},
  }