To cite list in publications use:

Blair G, Imai K (2010). list: Statistical Methods for the Item Count Technique and List Experiment. https://CRAN.R-project.org/package=list.

Corresponding BibTeX entry:

  @Manual{,
    title = {{list}: Statistical Methods for the Item Count Technique
      and List Experiment},
    author = {Graeme Blair and Kosuke Imai},
    howpublished = {Available at The Comprehensive R Archive Network
      (CRAN)},
    year = {2010},
    url = {https://CRAN.R-project.org/package=list},
  }