Calvin, R. J. (2007). Sales management demystified: A Self-Teaching Guide. New York, NY: McGraw-Hill.
Trích dẫn kiểu ChicagoCalvin, Robert J. Sales Management Demystified: A Self-Teaching Guide. New York, NY: McGraw-Hill, 2007.
MLA引文Calvin, Robert J. Sales Management Demystified: A Self-Teaching Guide. New York, NY: McGraw-Hill, 2007.
警告：这些引文格式不一定是100％准确.