Não informado. (1990). Mechanisms of Development. Elsevier Scientific Publishers Ireland.
Lua i Stíl Chicago (17ú heag.)Não informado. Mechanisms of Development. Limerick, Irlanda: Elsevier Scientific Publishers Ireland, 1990.
Lua MLA (8ú heag.)Não informado. Mechanisms of Development. Elsevier Scientific Publishers Ireland, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.