To cite package ‘rseedcalc’ in publications use:

  Wright K, Laffont J (2015). _rseedcalc: Estimating the Proportion of
  Genetically Modified Seeds in Seedlots via Multinomial Group
  Testing_. R package version 1.3,
  <https://CRAN.R-project.org/package=rseedcalc>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rseedcalc: Estimating the Proportion of Genetically Modified Seeds in
Seedlots via Multinomial Group Testing},
    author = {Kevin Wright and Jean-Louis Laffont},
    year = {2015},
    note = {R package version 1.3},
    url = {https://CRAN.R-project.org/package=rseedcalc},
  }