The main reference is the "RunMC paper" which was published in Commp. Phys. Comm. 173 (2005) p.115-198
A more detailed RunMC manual is available as PDF file Note this manual is also available from the JRunMC GUI.
Talk at the HERA-LHC meeting (CERN, January, 2005)
Talk at the HERA-LHC meeting (CERN, October 11, 2004)
Talk at the LCG meeting (CERN, September 23, 2004)
Talk at the HERA-LHC workshop (DESY, June 2, 2004)