The Molonglo Reference Catalog of Radio Sources results from a 408-MHz survey observations made with the Molonglo Radio Telescope (Australia) between 1968 and 1978. The survey covers 7.85sr of the sky between the declinations -85{deg} and +18{deg}, excluding the strip of the galactic plane (|b|<=3{deg}). The nominal beamwidth is 2.62arcmin in right ascension and 2.86sec({delta}+35.5)arcmin in declination. There are 7347 sources with flux density S>=1Jy, at which level the catalogue is substantially complete. A new version of the catalog has been done in 1990 (Cat. VIII/16).