Luck, D. J., & Rubin, R. S. (1996). Marketing research/7e (7th ed.). Prentice Hall of India.
Dyfyniad Arddull ChicagoLuck, David J., and Ronald S. Rubin. Marketing Research/7e. 7th ed. New Delhi: Prentice Hall of India, 1996.
Dyfyniad MLALuck, David J., and Ronald S. Rubin. Marketing Research/7e. 7th ed. Prentice Hall of India, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.