APA Citatie

Keller, G., & Warrack, B. (1994). Data disk for Essentials of business statistics (2nd ed.). Belmont, Calif.: Duxbury Press.

Chicago Style citaat

Keller, Gerald., en Brian Warrack. Data Disk for Essentials of Business Statistics. 2nd ed. Belmont, Calif.: Duxbury Press, 1994.

MLA citatie

Keller, Gerald., en Brian Warrack. Data Disk for Essentials of Business Statistics. 2nd ed. Belmont, Calif.: Duxbury Press, 1994.