Citing RevBayes

Höhna, Landis, Heath, Boussau, Lartillot, Moore, Huelsenbeck, Ronquist. 2016. RevBayes: Bayesian phylogenetic inference using graphical models and an interactive model-specification language. Systematic Biology, 65:726-736.

Additionally, the appropriate citation for the probabilistic graphical model framework used in RevBayes is:

Höhna, Heath, Boussau, Landis, Ronquist, Huelsenbeck. 2014. Probabilistic graphical model representation in phylogenetics. Systematic Biology 63:753–771.