Dyfyniad APA

Beri, G. C. (2018). Marketing Research (5th ed.). McGraw Hill Education (India) Pvt. Ltd.

Dyfyniad Arddull Chicago

Beri, G. C. Marketing Research. 5th ed. Chennai: McGraw Hill Education (India) Pvt. Ltd, 2018.

Dyfyniad MLA

Beri, G. C. Marketing Research. 5th ed. McGraw Hill Education (India) Pvt. Ltd, 2018.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.