Coppett, J., Staples, W. Professional Selling. Cincinnati: South-Western Publishing Co., 1990 471 p. ill, 0-538-80367-3.
Coppett, J., Staples, W. Professional Selling. Cincinnati: South-Western Publishing Co., 1990 471 p. ill, 0-538-80367-3.
Coppett, J., Staples, W. (1990) Professional Selling, Cincinnati: South-Western Publishing Co. 471 p. ill, 0-538-80367-3.
Coppett, J., & Staples, W. (1990). Professional Selling. A Relationship Management Process. Cincinnati: South-Western Publishing Co., 471 p. ill.
Coppett J, Staples W. Professional Selling: A Relationship Management Process. Cincinnati: South-Western Publishing Co.; 1990. p. 471 p. ill. ISBN: 0-538-80367-3.
