Cooper, Donald R., Business research methods / by Donald R. Cooper, Pamela S. Schindler. - Ninth edition. - Boston : McGraw Hill, 2014. - xxi, 744 pages : illustrations, tables ,graphs ; 25 cm. Includes bibliographical references and index. ISBN: 007125515X Subjects--Topical Terms: Business research.Design research.Abstracts. Dewey Class. No.: 658.57 / C77