Não informado. (1963). Education abstracts. American College Public Relations Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Education Abstracts. Washington: American College Public Relations Association, 1963.
Lua MLA (8ú heag.)Não informado. Education Abstracts. American College Public Relations Association, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.