Cooper, Donald R., Business research methods / Donald R. Cooper, Pamela S. Schindler. - Seventh edition. - New York : McGraw-Hill, 2001 - xviii, 798 pages ; Illustration, figures, tables ; 25 cm. Includes bibliographical references and index. English ISBN: 0072314516 Subjects--Topical Terms: Business Dewey Class. No.: 658.0072 / C77