Still Richard R. et.al. (2004). Sales Management Decisions, Strategies, and Cases (5th.). Prentice-hall.
Dyfyniad Arddull ChicagoStill Richard R. et.al. Sales Management Decisions, Strategies, and Cases. 5th. New Delhi: Prentice-hall, 2004.
Dyfyniad MLAStill Richard R. et.al. Sales Management Decisions, Strategies, and Cases. 5th. Prentice-hall, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.