APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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