Zikmund, William G. Business research methods / William G. Zikmund ... [et al.]. - 9th ed. - Australia : South-Western, Cengage Learning, c2013. - xxv, 670 p. : ill. ; 29 cm. Includes bibliographical reference and index. ISBN: 9781133190943 Subjects--Topical Terms: Business--Methodology.Business--Research. LC Class. No.: HD30.4 / .B87 2013