Palffy, G. Artist‘s drawing techniques (First American edition.).
Lua i Stíl Chicago (17ú heag.)Palffy, Georgina. Artist‘s Drawing Techniques. First American edition.
Lua MLA (9ú heag.)Palffy, Georgina. Artist‘s Drawing Techniques. First American edition.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.