Não informado. (1978). Chief executive monthly. Morgan Grampian.
Lua i Stíl Chicago (17ú heag.)Não informado. Chief Executive Monthly. London: Morgan Grampian, 1978.
Lua MLA (8ú heag.)Não informado. Chief Executive Monthly. Morgan Grampian, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.