Lua APA (7ú heag.)

Sympson, J. B. (1980). Testing differences between multiple correlations. Educational Testing Service.

Lua i Stíl Chicago (17ú heag.)

Sympson, James B. Testing Differences Between Multiple Correlations. Princeton, New Jersey: Educational Testing Service, 1980.

Lua MLA (9ú heag.)

Sympson, James B. Testing Differences Between Multiple Correlations. Educational Testing Service, 1980.

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