APA (7e ed.) Bronvermelding

ZIKMUND WILLIAM G. (2008). BUSINESS RESEARCH METHODS 7TH ED (7TH ED.). SOUTH-WESTERN COLLEGE PUBLISHING CO.

Chicago (17e ed.) Bronvermelding

ZIKMUND WILLIAM G. BUSINESS RESEARCH METHODS 7TH ED. 7TH ED. AUSTRALIA: SOUTH-WESTERN COLLEGE PUBLISHING CO, 2008.

MLA (9e ed.) Bronvermelding

ZIKMUND WILLIAM G. BUSINESS RESEARCH METHODS 7TH ED. 7TH ED. SOUTH-WESTERN COLLEGE PUBLISHING CO, 2008.