Tanner John F,Honecutt Earl D, E. R. C. (2009). Sales Management. Pearson.
Dyfyniad Arddull ChicagoTanner John F,Honecutt Earl D, Erffmeyer Robert C. Sales Management. New Delhi: Pearson, 2009.
Dyfyniad MLATanner John F,Honecutt Earl D, Erffmeyer Robert C. Sales Management. Pearson, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.