Dalrymple , D. (1982). Sales Management: Concepts and Cases. John Wiley.
Dyfyniad Arddull ChicagoDalrymple , Douglas.J. Sales Management: Concepts and Cases. New York: John Wiley, 1982.
Dyfyniad MLADalrymple , Douglas.J. Sales Management: Concepts and Cases. John Wiley, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.