Lua APA (7ú heag.)

Keller, G., & Warrack, B. (2003). Statistics for management and economics (6th ed.). Thomson/Brooks/Cole.

Lua i Stíl Chicago (17ú heag.)

Keller, Gerald, agus Brian Warrack. Statistics for Management and Economics. 6th ed. Pacific Grove, CA: Thomson/Brooks/Cole, 2003.

Lua MLA (9ú heag.)

Keller, Gerald, agus Brian Warrack. Statistics for Management and Economics. 6th ed. Thomson/Brooks/Cole, 2003.

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