Stephenson, J. (2005). 202 services you can sell for big profits. Irvine, CA: Entrepreneur Press.
استشهاد بنمط شيكاغوStephenson, James. 202 Services You Can Sell for Big Profits. Irvine, CA: Entrepreneur Press, 2005.
MLA استشهادStephenson, James. 202 Services You Can Sell for Big Profits. Irvine, CA: Entrepreneur Press, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.