Dyfyniad APA

 Niblick, J. (2013).  The profitable consultant: Starting, growing, and selling your expertise.  Wiley.

Dyfyniad Arddull Chicago

 Niblick, Jay.  The Profitable Consultant: Starting, Growing, and Selling Your Expertise.  Wiley, 2013.

Dyfyniad MLA

 Niblick, Jay.  The Profitable Consultant: Starting, Growing, and Selling Your Expertise.  Wiley, 2013.

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