Não informado. (1964). Market Research Abstracts. Market Research Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Market Research Abstracts. London: Market Research Society, 1964.
Lua MLA (8ú heag.)Não informado. Market Research Abstracts. Market Research Society, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.