Walker, Orville C. Marketing strategy : a decision-focused approach / Orville C. Walker, Jr., John W. Mullins. - 8th ed. - New York : McGraw-Hill Irwin, c2011. - xvi, 368 p. : ill. ; 26 cm. Includes bibliographical references and indexes. ISBN: 9781259010903 Subjects--Topical Terms: Marketing. LC Class. No.: HF5415.13 / .W249 2008