Wolff, J. Creativity Now (1.). Pearson Education UK.
Lua i Stíl Chicago (17ú heag.)Wolff, Jurgen. Creativity Now. 1. Pearson Education UK.
Lua MLA (8ú heag.)Wolff, Jurgen. Creativity Now. 1. Pearson Education UK.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.