Barber, B. (2012). Portraits: A practical and inspirational workbook. Arcturus Publishing Limited.
Lua i Stíl Chicago (17ú heag.)Barber, Barrington. Portraits: A Practical and Inspirational Workbook. Bermondsey Street, London: Arcturus Publishing Limited, 2012.
Lua MLA (9ú heag.)Barber, Barrington. Portraits: A Practical and Inspirational Workbook. Arcturus Publishing Limited, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.