Blumberg, Boris. Business research methods / Boris Blumberg, Donald R. Cooper and Pamela S. Schindler. - 3rd ed. - London : McGraw-Hill Higher Education, c2011. - xix, 505, 138 p. : col. ill. ; 27 cm. Previous ed.: 2008. Includes bibliographical references and index. ISBN: 9780077129972 (pbk.) 0077129970 (pbk.) Subjects--Topical Terms: Business--Research--Methodology. Dewey Class. No.: 658.0072 / BLU 2011