To cite package 'lessR' in publications use:

David W. Gerbing, (2013). lessR: Less Code, More Results. R package version 2.9.3, http://cran.r-project.org/web/packages/lessR/index.html.

Corresponding BibTeX entry:

  @Manual{,
    title = {lessR: Less Code, More Results},
    author = {David W. Gerbing},
    year = {2013},
    note = {R package version 2.9.3},
    url = {http://cran.r-project.org/web/packages/lessR/index.html},
  }