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Dyfyniad Arddull ChicagoStokes, Patricia D. Creativity from Constraints: The Psychology of Breakthrough. New York: Springer Pub. Co., 2006.
Dyfyniad MLAStokes, Patricia D. Creativity from Constraints: The Psychology of Breakthrough. Springer Pub. Co., 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.