Walker, Orville C. Marketing strategy : a decision-focused approach / Orville C. Walker, Jr., John W. Mullins. - 8th ed. - New York, NY : McGraw-Hill Irwin, 2014. - xvi,368 p : ill. ; 25 cm. Includes index. ISBN: 9780078028946 RM577.46 0078028949 Subjects--Topical Terms: Marketing--Management.