Não informado. (1967). European Journal of Marketing. MCB Journals.
Lua i Stíl Chicago (17ú heag.)Não informado. European Journal of Marketing. Bradford, Inglaterra: MCB Journals, 1967.
Lua MLA (8ú heag.)Não informado. European Journal of Marketing. MCB Journals, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.