Saunders, M. N. K. Research methods for business students / Mark Saunders, Philip Lewis, Adrian Thornhill. - 6th ed. - Harlow, England ; New York : Pearson, 2012. - xxxi, 696 p. : col. ill. ; 27 cm. Includes bibliographical references and index. ISBN: 9780273750758 LCCN: 2011050137 Subjects--Topical Terms: Business--Research.Business--Research--Data processing. LC Class. No.: HD30.4 / SAU 2012 Dewey Class. No.: 650.072