Thull, J. (2006). Exceptional selling: How the best connect and win in high stakes sales. Chichester: John Wiley.
Dyfyniad Arddull ChicagoThull, Jeff. Exceptional Selling: How the Best Connect and Win in High Stakes Sales. Chichester: John Wiley, 2006.
Dyfyniad MLAThull, Jeff. Exceptional Selling: How the Best Connect and Win in High Stakes Sales. Chichester: John Wiley, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.