Chisnall, P. M. (1981). Marketing research: Analysis and research/2nd ed. McGraw-Hill.
Dyfyniad Arddull ChicagoChisnall, Peter M. Marketing Research: Analysis and Research/2nd Ed. New York: McGraw-Hill, 1981.
Dyfyniad MLAChisnall, Peter M. Marketing Research: Analysis and Research/2nd Ed. McGraw-Hill, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.