To cite the lmomRFA package use:

J. R. M. Hosking (2009). Regional frequency analysis using L-moments. R package, version 2.1. URL: http://CRAN.R-project.org/package=lmomRFA.

Corresponding BibTeX entry:

  @Manual{,
    title = {Regional frequency analysis using L-moments},
    author = {J. R. M. Hosking},
    year = {2009},
    note = {R package, version 2.1},
    url = {http://CRAN.R-project.org/package=lmomRFA},
  }