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Dyfyniad Arddull ChicagoHeyman, Jay H. All You Need Is a Good Idea!: How to Create Marketing Messages That Actually Get Results. Hoboken, N.J.: Wiley, 2008.
Dyfyniad MLAHeyman, Jay H. All You Need Is a Good Idea!: How to Create Marketing Messages That Actually Get Results. Wiley, 2008.
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