Lewis, G. (1999). Successful creativity in a week. Hodder & Stoughton.
Chicago (17e ed.) BronvermeldingLewis, Gareth. Successful Creativity in a Week. London: Hodder & Stoughton, 1999.
MLA (8e ed.) BronvermeldingLewis, Gareth. Successful Creativity in a Week. Hodder & Stoughton, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.