Rankin David. (2000). Fast Sketching Techniques: Capture the Fundamental Essence of Elusive Subjects. North Light Books.
Lua i Stíl Chicago (17ú heag.)Rankin David. Fast Sketching Techniques: Capture the Fundamental Essence of Elusive Subjects. Cincinnati: North Light Books, 2000.
Lua MLA (9ú heag.)Rankin David. Fast Sketching Techniques: Capture the Fundamental Essence of Elusive Subjects. North Light Books, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.