Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.