Dyfyniad APA
Chisnal Peter M. (1991). The essence of marketing research. Prentice Hall India.
Dyfyniad Arddull Chicago
Chisnal Peter M. The Essence of Marketing Research. New Delhi: Prentice Hall India, 1991.
Dyfyniad MLA
Chisnal Peter M. The Essence of Marketing Research. Prentice Hall India, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.