The achievement of Sean O Riada : integrating tradition / Bernard Harris and Grattan Freyer. - Dublin : Irish Humanities Centre, 1981. - 205 pages : illustrations ; 23 cm ISBN: 0906462045 Subjects--Personal Names: Ó Riada, Seán Subjects--Topical Terms: Composers--Ireland--Biography. Dewey Class. No.: 780.92 ORI