Nash, E. L. (1993). Database marketing: The ultimate marketing tool. New York: McGraw-Hill.
Dyfyniad Arddull ChicagoNash, Edward L. Database Marketing: The Ultimate Marketing Tool. New York: McGraw-Hill, 1993.
Dyfyniad MLANash, Edward L. Database Marketing: The Ultimate Marketing Tool. New York: McGraw-Hill, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.