Robinson, N. (1993). Marketing toolkit. Viva.
Lua i Stíl Chicago (17ú heag.)Robinson, Nick. Marketing Toolkit. New delhi: Viva, 1993.
Lua MLA (9ú heag.)Robinson, Nick. Marketing Toolkit. Viva, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.