Walle, Alf H. Qualitative research in intelligence and marketing : the new strategic convergence / Alf H. Walle III - Westport, Conn. : Quorum Books, 2001 - xii, 246 p. ; 25 cm. Includes bibliographical references and index ISBN: 1567203663 RM261.30 LCCN: 00-025250 Subjects--Topical Terms: Business intelligenceMarketing research