Não informado. Trends. National School Public Relations Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Trends. Washington: National School Public Relations Association.
Lua MLA (8ú heag.)Não informado. Trends. National School Public Relations Association.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.