Lua APA (7ú heag.)

Gravetter, F. J. (2004). Statistics for the behavioral sciencesFrederick J Gravetter, Larry B. Wallnau. Thomson Learning.

Lua i Stíl Chicago (17ú heag.)

Gravetter, Frederick J. Statistics for the Behavioral SciencesFrederick J Gravetter, Larry B. Wallnau. Thomson Learning, 2004.

Lua MLA (8ú heag.)

Gravetter, Frederick J. Statistics for the Behavioral SciencesFrederick J Gravetter, Larry B. Wallnau. Thomson Learning, 2004.

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