Dyfyniad APA

 Heyman, J. H. (2008).  All you need is a good idea!: How to create marketing messages that actually get results.  John Wiley & Sons, Inc.

Dyfyniad Arddull Chicago

 Heyman, Jay H.  All You Need Is a Good Idea!: How to Create Marketing Messages That Actually Get Results.  John Wiley & Sons, Inc, 2008.

Dyfyniad MLA

 Heyman, Jay H.  All You Need Is a Good Idea!: How to Create Marketing Messages That Actually Get Results.  John Wiley & Sons, Inc, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.