Petty, G. (1998). How to be better at creativity. Kogan Page India.
Chicago-čujuhus (17. p.)Petty, Geoffrey. How to Be Better at Creativity. New Delhi: Kogan Page India, 1998.
MLA-čujuhus (9. p.)Petty, Geoffrey. How to Be Better at Creativity. Kogan Page India, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.