Citazione APA

Keller, G., & Warrack, B. (1998). Statistics for management and economics (4th ed.). Pacific Grove, CA: Duxbury.

Stile di citazione Chicago

Keller, Gerald., e Brian Warrack. Statistics for Management and Economics. 4th ed. Pacific Grove, CA: Duxbury, 1998.

Citazione MLA

Keller, Gerald., e Brian Warrack. Statistics for Management and Economics. 4th ed. Pacific Grove, CA: Duxbury, 1998.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.