Bender, J. F. (1961). How to sell well: Art and science of professional salesmanship. McGraw-Hill.
استشهاد بنمط شيكاغوBender, James F. How to Sell Well: Art and Science of Professional Salesmanship. New York: McGraw-Hill, 1961.
MLA استشهادBender, James F. How to Sell Well: Art and Science of Professional Salesmanship. McGraw-Hill, 1961.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.