Bethada Náem nÉrenn (Lives of Irish Saints). Charles Plummer (ed), Richard Irvine Best (ed), Second edition, in that the text is reprinted from the corrected sheets of the first edition [vol. 1: xliv + 346 pp; vol. 2: 484pp] Clarendon Press Oxford (1922) (repr. 1968). Found online through UCC CELT, here: http://www.ucc.ie/celt/published/T201000F/index.html
