Historic Documents of 1988. SAGE.
Lua i Stíl Chicago (17ú heag.)Historic Documents of 1988. SAGE.
Lua MLA (8ú heag.)Historic Documents of 1988. SAGE.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)