Cooper, Donald R. Business research methods / Donald R. Cooper, Pamela S. Schindler. - 8th ed. - Boston : McGraw-Hill/Irwin, c2003. - xix, 857 p. : ill. (some col.) ; 27 cm. - The McGraw-Hill/Irwin series operations and decision sciences. . Includes indexes. Includes bibliographical references. ISBN: 0072498706 (pbk. ) Subjects--Topical Terms: Industrial management--Research.