To cite RNetLogo in publications use:

Jan C. Thiele (2014). R Marries NetLogo: Introduction to the RNetLogo Package. Journal of Statistical Software, 58(2), 1-41. URL http://www.jstatsoft.org/v58/i02/.

Jan C. Thiele, Winfried Kurth, and Volker Grimm (2012). RNetLogo: An R Package for Running and Exploring Individual-Based Models Implemented in NetLogo. Methods in Ecology and Evolution 3 (3), 480-483. URL http://onlinelibrary.wiley.com/doi/10.1111/j.2041-210X.2011.00180.x/abstract/.

Corresponding BibTeX entries:

  @Article{,
    title = {{R} Marries {NetLogo}: Introduction to the {RNetLogo}
      Package},
    author = {Jan C. Thiele},
    journal = {Journal of Statistical Software},
    year = {2014},
    volume = {58},
    number = {2},
    pages = {1--41},
    url = {http://www.jstatsoft.org/v58/i02/},
  }

  @Article{,
    title = {{RNetLogo}: An {R} Package for Running and Exploring
      Individual-Based Models Implemented in {NetLogo}},
    author = {Jan C. Thiele and Winfried Kurth and Volker Grimm},
    journal = {Methods in Ecology and Evolution},
    year = {2012},
    volume = {3},
    number = {3},
    pages = {480--483},
    url =
      {http://onlinelibrary.wiley.com/doi/10.1111/j.2041-210X.2011.00180.x/abstract},
  }