To cite package ‘waterYearType’ in publications use:

Gill S (2019). waterYearType: Sacramento and San Joaquin Valley Water Year Types. R package version 1.0.1, https://CRAN.R-project.org/package=waterYearType.

Corresponding BibTeX entry:

  @Manual{,
    title = {waterYearType: Sacramento and San Joaquin Valley Water
      Year Types},
    author = {Sadie Gill},
    year = {2019},
    note = {R package version 1.0.1},
    url = {https://CRAN.R-project.org/package=waterYearType},
  }