Παραπομπή APA

Keller, G., & Warrack, B. (1997). Statistics for management and economics (4th ed.). Belmont: Wadsworth Publishing Company.

Παραπομπή Chicago Style

Keller, Gerald., and Brian Warrack. Statistics for Management and Economics. 4th ed. Belmont: Wadsworth Publishing Company, 1997.

Παραπομπή MLA

Keller, Gerald., and Brian Warrack. Statistics for Management and Economics. 4th ed. Belmont: Wadsworth Publishing Company, 1997.

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