ZIKMUND WILLIAM G. (2008). BUSINESS RESEARCH METHODS 7TH ED (7TH ED.). SOUTH-WESTERN COLLEGE PUBLISHING CO.
Chicago-Zitierstil (17. Ausg.)ZIKMUND WILLIAM G. BUSINESS RESEARCH METHODS 7TH ED. 7TH ED. AUSTRALIA: SOUTH-WESTERN COLLEGE PUBLISHING CO, 2008.
MLA-Zitierstil (9. Ausg.)ZIKMUND WILLIAM G. BUSINESS RESEARCH METHODS 7TH ED. 7TH ED. SOUTH-WESTERN COLLEGE PUBLISHING CO, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.