Keller, G. (2003). Statistics: For management and economics (ada CD). Thomson Learning.
Čikaški stil citiranja (17. izdanje)Keller, Gerald. Statistics: For Management and Economics (ada CD). Thomson Learning, 2003.
MLA način citiranja (8. izdanje)Keller, Gerald. Statistics: For Management and Economics (ada CD). Thomson Learning, 2003.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.