Clarke, D. (1967). Richard J. Hayes (on his retirement from the post of Director of the National Library of Ireland).
Lua i Stíl Chicago (17ú heag.)Clarke, Desmond. Richard J. Hayes (on His Retirement from the Post of Director of the National Library of Ireland). 1967.
Lua MLA (9ú heag.)Clarke, Desmond. Richard J. Hayes (on His Retirement from the Post of Director of the National Library of Ireland). 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
