Dyfyniad APA

AAKER, D. A., KUMAR, V., & DAY, G. S. (1995). Marketing research (Ed.5.). John Wiley and Sons.

Dyfyniad Arddull Chicago

AAKER, David A., V. KUMAR, and George S. DAY. Marketing Research. Ed.5. New York: John Wiley and Sons, 1995.

Dyfyniad MLA

AAKER, David A., et al. Marketing Research. Ed.5. John Wiley and Sons, 1995.

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