Não informado. (2017). Dissertation Abstracts: Abstracts of dissertations and monographs in microfilm. University Microfilms.
Lua i Stíl Chicago (17ú heag.)Não informado. Dissertation Abstracts: Abstracts of Dissertations and Monographs in Microfilm. Ann Arbor, Mich: University Microfilms, 2017.
Lua MLA (8ú heag.)Não informado. Dissertation Abstracts: Abstracts of Dissertations and Monographs in Microfilm. University Microfilms, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.