Owing to the fact that a Living Reviews in Relativity article may evolve over time, we recommend to cite the article as follows:
Benoît Famaey and Stacy S. McGaugh,
"Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions",
Living Rev. Relativity 15, (2012), 10. URL (accessed <date>):
http://www.livingreviews.org/lrr-2012-10
The date given as <date> then uniquely identifies the version of the article you are referring to.