Wolff, J. Creativity Now: Get inspired, create ideas and make them happen! (2.). Pearson Education UK.
Lua i Stíl Chicago (17ú heag.)Wolff, Jurgen. Creativity Now: Get Inspired, Create Ideas and Make Them Happen! 2. Pearson Education UK.
Lua MLA (8ú heag.)Wolff, Jurgen. Creativity Now: Get Inspired, Create Ideas and Make Them Happen! 2. Pearson Education UK.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.