Dublin, Trinity College, MS 50 (A 4. 20) = Psalter of Ricemarch
  • s. xi2
Lindsay, W. M., Early Welsh script, Saint Andrews University Publications, 10, Oxford, 1912.
Internet Archive: <link>, <link>, <link>
[9] “The Rhygyfarch MSS”
Gilbert, John T. [ed.], Facsimiles of national manuscripts of Ireland, vol. 1: Part 1, Dublin: Public Record Office of Ireland, 1874.