found: Zosimus. New history, 1982:title page (a translation with commentary by Ronald T. Ridley; published by the Australian Association for Byzantine Studies)
found: LC data base, 8-29-84(hdg.: Ridley, Ronald T., 1940- ; usage: R.T. Ridley)
found: Melbourne's monuments, 1996:title page (Ronald T. Ridley) title page verso (Australian CIP hdg.: Ridley, Ronald T. (Ronald Thomas), 1940- )
found: The prince as poisoner : the trial of Sigismondo Chigi, Rome 1790, 2015:title page (Ronald T. Ridley)
found: University of Melbourne, School of Historical and Philosophical Studies website, viewed May 31, 2016:link to Our Staff page (Professor Ronald Ridley, Professor Emeritus (Honorary); Master of Arts from University of Sydney in 1963; Doctor of Letters from University of Melbourne in 1992) - http://shaps.unimelb.edu.au/about/staff/professor-ronald-ridley