Ó Riain (Pádraig) (comp.): Clár na lámhscríbhinní Gaeilge sa Bhreatain Bhig.
B.Á.C.: Cló Bhréanainn, 1968. xiv + 130 pp.
Catalogue of Ir. MSS in Wales: 35 MSS (A1–A35) in the National Library of Wales, Aberystwyth; 2 MSS (C 1–C 2) in the Central Library, Cardiff. With a general index and an index of first lines of verse.