Dyfyniad APA

Holbert, N. B., & Speece, M. W. (1993). Practical marketing research: An integrated global perspective. Prentice Hall.

Dyfyniad Arddull Chicago

Holbert, Neil Bruce, and Mark W. Speece. Practical Marketing Research: An Integrated Global Perspective. New York: Prentice Hall, 1993.

Dyfyniad MLA

Holbert, Neil Bruce, and Mark W. Speece. Practical Marketing Research: An Integrated Global Perspective. Prentice Hall, 1993.

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