To cite reporttools in publications use:

Kaspar Rufibach (2009). reporttools: R Functions to Generate LaTeX Tables of Descriptive Statistics. Journal of Statistical Software, Code Snippets, 31(1). URL http://www.jstatsoft.org/v31/c01/.

Corresponding BibTeX entry:

  @Article{,
    title = {{reporttools}: {R} Functions to Generate {\LaTeX} Tables
      of Descriptive Statistics},
    author = {Kaspar Rufibach},
    journal = {Journal of Statistical Software, Code Snippets},
    year = {2009},
    volume = {31},
    number = {1},
    url = {http://www.jstatsoft.org/v31/c01/},
  }