Halbert, M. (1965). Meaning and sources of marketing theory. McGraw Hill.
Dyfyniad Arddull ChicagoHalbert, Michael. Meaning and Sources of Marketing Theory. New York: McGraw Hill, 1965.
Dyfyniad MLAHalbert, Michael. Meaning and Sources of Marketing Theory. McGraw Hill, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.