Niblick, J. (2013). The profitable consultant: Starting, growing, and selling your expertise. Wiley.
استشهاد بنمط شيكاغوNiblick, Jay. The Profitable Consultant: Starting, Growing, and Selling Your Expertise. Wiley, 2013.
MLA استشهادNiblick, Jay. The Profitable Consultant: Starting, Growing, and Selling Your Expertise. Wiley, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.