Lua APA (7ú heag.)

Keller, G. (2005). Statistics for management and economicsGerald Keller. Thomson.

Lua i Stíl Chicago (17ú heag.)

Keller, Gerald. Statistics for Management and EconomicsGerald Keller. Thomson, 2005.

Lua MLA (8ú heag.)

Keller, Gerald. Statistics for Management and EconomicsGerald Keller. Thomson, 2005.

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