Gad, T. (2001). 4-D brandingThomas Gad. Pearson Education.
Lua i Stíl Chicago (17ú heag.)Gad, Thomas. 4-D BrandingThomas Gad. Pearson Education, 2001.
Lua MLA (8ú heag.)Gad, Thomas. 4-D BrandingThomas Gad. Pearson Education, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.