Dyfyniad APA

William, M. P., & O.C., F. (2025). Marketing (2020 Edition). Cengage Learning, Inc.

Dyfyniad Arddull Chicago

William, M. Pride, và Ferrell O.C. Marketing (2020 Edition). Cengage Learning, Inc, 2025.

Dyfyniad MLA

William, M. Pride, và Ferrell O.C. Marketing (2020 Edition). Cengage Learning, Inc, 2025.

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