Schnaars, Steven P. Marketing strategy : a customer-driven approach / Steven P. Schnaars. - New York : Toronto : New York : The Free Press ; Collier Macmillan Canada ; Maxwell Macmillan International, 1991. - xvi, 319 pages : illustrations, charts ; 24 cm. Includes bibliographical references and indexes. ISBN: 9780029279533 Subjects--Topical Terms: Competition. Marketing--Management. Strategic planning.