Walker, Orville C. Marketing strategy : a decision-focused approach / Orville C. Walker, Jr., John W. Mullins. - 7th ed. - New York : McGraw-Hill/Irwin, c2011. - xv, 352 p. : ill. ; ISBN: 9780073381152 (alk. paper) 0073381152 (alk. paper) Subjects--Topical Terms: Marketing LC Class. No.: HF5415.13 / .W249 2011