Walker, Orville C. Marketing strategy : a decision-focused approach / Orville C. Walker, Jr., John W. Mullins. - 7th ed. - New York : McGraw-Hill/Irwin, 2011. - xv, 352 p. : ill. ; 26 cm. Includes bibliographical references and indexes. ISBN: 9780073381152 (alk. paper) RM409.15 (1 naskhah) 0073381152 (alk. paper) Subjects--Topical Terms: Marketing--Management.