Gschwandtner, G. (2007). The essential sales management handbook: Your secret weapon to success. New York, NY: McGraw-Hill.
Chicago-стиль цитированияGschwandtner, Gerhard. The Essential Sales Management Handbook: Your Secret Weapon to Success. New York, NY: McGraw-Hill, 2007.
MLA-цитированиеGschwandtner, Gerhard. The Essential Sales Management Handbook: Your Secret Weapon to Success. New York, NY: McGraw-Hill, 2007.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.