Toppin, G. C. (2007). Business consulting: A guide to how it works and how to make it work.
استشهاد بنمط شيكاغوToppin, Gilbert; Czerniawska. Business Consulting: A Guide to How It Works and How to Make It Work. Economist, 2007.
MLA استشهادToppin, Gilbert; Czerniawska. Business Consulting: A Guide to How It Works and How to Make It Work. 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.