GREEN, P. E. (1986). Research For Marketing Decisons Paul E. Green, Donald S. Tull. Prentice-Hall.
Dyfyniad Arddull ChicagoGREEN, Paul E. Research For Marketing Decisons Paul E. Green, Donald S. Tull. Prentice-Hall, 1986.
Dyfyniad MLAGREEN, Paul E. Research For Marketing Decisons Paul E. Green, Donald S. Tull. Prentice-Hall, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.