Robbinson, N. (2007). Marketing tool Kit.
Lua i Stíl Chicago (17ú heag.)Robbinson, Nick. Marketing Tool Kit. Mumbai, 2007.
Lua MLA (9ú heag.)Robbinson, Nick. Marketing Tool Kit. 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.