Lester, P. M. (1995). Visual communication: Images with messages. Wadsworth Publishing.
Lua i Stíl Chicago (17ú heag.)Lester, Paul Martin. Visual Communication: Images with Messages. Belmont: Wadsworth Publishing, 1995.
Lua MLA (9ú heag.)Lester, Paul Martin. Visual Communication: Images with Messages. Wadsworth Publishing, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.