Lewis, H. (1998). Advertising age handbook of advertising.
Lua i Stíl Chicago (17ú heag.)Lewis, Herschell. Advertising Age Handbook of Advertising. Delhi, 1998.
Lua MLA (9ú heag.)Lewis, Herschell. Advertising Age Handbook of Advertising. 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.