Fifield, P. (2007). Marketing strategy: The difference between marketing and markets (third.). Butterworth Heinemnn.
Dyfyniad Arddull ChicagoFifield, Paul. Marketing Strategy: The Difference Between Marketing and Markets. third. Oxford: Butterworth Heinemnn, 2007.
Dyfyniad MLAFifield, Paul. Marketing Strategy: The Difference Between Marketing and Markets. third. Butterworth Heinemnn, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.