Walker, Orville C. Marketing strategy : a decision-focused approach / Orville C. Walker and John W. Mullins - 7th ed. - New York : McGraw-Hill/Irwin, c2011. - xv, 352 p. : ill. ; 26 cm. ISBN: 9780073381152 LCCN: Subjects--Topical Terms: MarketingManagement LC Class. No.: HF5415.13 / .M3586 2011 Dewey Class. No.: 658.802 / W182m