When using RWeka in publications, please cite both the RWeka interface and Weka itself:

To cite RWeka, the R interface to Weka, please use:

Hornik K, Buchta C and Zeileis A (2009). “Open-Source Machine Learning: R Meets Weka.” Computational Statistics, 24(2), pp. 225–232. doi: 10.1007/s00180-008-0119-7.

To cite Weka, please use:

Witten IH and Frank E (2005). Data Mining: Practical Machine Learning Tools and Techniques, 2nd edition. Morgan Kaufmann, San Francisco.

Corresponding BibTeX entries:

    title = {Open-Source Machine Learning: {R} Meets {Weka}},
    author = {Kurt Hornik and Christian Buchta and Achim Zeileis},
    journal = {Computational Statistics},
    year = {2009},
    volume = {24},
    number = {2},
    pages = {225--232},
    doi = {10.1007/s00180-008-0119-7},
    title = {Data Mining: Practical Machine Learning Tools and
    author = {Ian H. Witten and Eibe Frank},
    year = {2005},
    edition = {2nd},
    publisher = {Morgan Kaufmann},
    address = {San Francisco},