Lewis, G. (1999). Successful creativity in a week. Hodder & Stoughton.
Lua i Stíl Chicago (17ú heag.)Lewis, Gareth. Successful Creativity in a Week. London: Hodder & Stoughton, 1999.
Lua MLA (8ú heag.)Lewis, Gareth. Successful Creativity in a Week. Hodder & Stoughton, 1999.
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