Petty, G. (1998). How to be better at creativity. Kogan Page India.
Lua i Stíl Chicago (17ú heag.)Petty, Geoffrey. How to Be Better at Creativity. New Delhi: Kogan Page India, 1998.
Lua MLA (9ú heag.)Petty, Geoffrey. How to Be Better at Creativity. Kogan Page India, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.