APA citiranje

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

Trích dẫn kiểu Chicago

Keller, Gerald., và Brian Warrack. Essentials of Business Statistics. 2nd ed. Belmont, Calif.: Duxbury Press, 1994.

MLA citiranje

Keller, Gerald., và Brian Warrack. Essentials of Business Statistics. 2nd ed. Belmont, Calif.: Duxbury Press, 1994.