Nolan, S. A., & Heinzen, T. E. (2012). Statistics for the behavioral sciences (2nd ed.). Worth Publishers.
Lua i Stíl Chicago (17ú heag.)Nolan, Susan A., agus Thomas E. Heinzen. Statistics for the Behavioral Sciences. 2nd ed. New York: Worth Publishers, 2012.
Lua MLA (9ú heag.)Nolan, Susan A., agus Thomas E. Heinzen. Statistics for the Behavioral Sciences. 2nd ed. Worth Publishers, 2012.
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