Dyfyniad APA
Walker, O. C. (2003). Marketing strategy: A decision-focused approach (4th ed.). McGraw-Hill/Irwin.
Dyfyniad Arddull Chicago
Walker, Orville C. Marketing Strategy: A Decision-focused Approach. 4th ed. Boston: McGraw-Hill/Irwin, 2003.
Dyfyniad MLA
Walker, Orville C. Marketing Strategy: A Decision-focused Approach. 4th ed. McGraw-Hill/Irwin, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.