Dalley Trence. (1983). Complete Guide to Illustration and Design. Oxford.
Lua i Stíl Chicago (17ú heag.)Dalley Trence. Complete Guide to Illustration and Design. USA: Oxford, 1983.
Lua MLA (9ú heag.)Dalley Trence. Complete Guide to Illustration and Design. Oxford, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.