Gschwandtner, G. (2007). The essential sales management handbook: Your secret weapon to success. New York, NY: McGraw-Hill.
استشهاد بنمط شيكاغوGschwandtner, Gerhard. The Essential Sales Management Handbook: Your Secret Weapon to Success. New York, NY: McGraw-Hill, 2007.
MLA استشهادGschwandtner, Gerhard. The Essential Sales Management Handbook: Your Secret Weapon to Success. New York, NY: McGraw-Hill, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.