Barber, B. (2010). Drawing masterclass. Arcturus Publishing Limited.
Lua i Stíl Chicago (17ú heag.)Barber, Barrington. Drawing Masterclass. London: Arcturus Publishing Limited, 2010.
Lua MLA (9ú heag.)Barber, Barrington. Drawing Masterclass. Arcturus Publishing Limited, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.