Frain, J. (1999). Introduction to marketing (4th ed.). London: International Thomson Business.
Stile di citazione ChicagoFrain, John. Introduction to Marketing. 4th ed. London: International Thomson Business, 1999.
Citazione MLAFrain, John. Introduction to Marketing. 4th ed. London: International Thomson Business, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.